CLASS 362,	ILLUMINATION
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SECTION I - CLASS DEFINITION

This class is the residual locus of means and processes for casting visible radiant energy in at least one direction to render objects in that direction visible.

BASIC SUBJECT MATTER OF THE CLASS

The basic subject matter of the class is comprised of:

A. The combination of a source of visible radiant energy and means to modify the distribution or composition of the radiant energy emanating from the source.

B. Methods utilizing the combination of A, above, to cast light in at least one direction to render objects in that direction visible.

SCOPE OF THE CLASS

In addition to the basic subject matter of the class, this class also provides for:

A. Subcombinations of the basic subject matter of the class not provided for elsewhere comprising:

1. means to modify the distribution of composition of light from sources other than the heavenly bodies;

2. means to support a source of visible radiant energy;

3. means to support the modifying means of item 1, above, and

4. combinations of items 1, 2, and/or 3, above.

B. Combinations of the basic subject matter of the class and subject matter classified elsewhere insofar as the combination is not provided for elsewhere.

C. Accessories to the basic subject matter of the class limited in their intended use to the basic subject matter of the class.

(1) Note. Wherever drawings are associated with subclass definitions, they are used merely to illustrate the basic concept encompassed by the definition of that subclass and should not be construed as limiting the scope of the subject matter covered by that subclass.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

A. LIGHT SOURCES, PER SE

Light sources, per se, are not classifiable in this class (362). For such devices, see References to Other Classes, below.

B. LIGHT MODIFIERS

Generally, light modifying means, per se, used merely to modify light from light sources other than a heavenly body are classifiable in this class (362). For exceptions listed in this class, see Subclass References to the Current Class, below.

Light modifying means not limited in use to illumination are not classifiable in this class. Two such modifying means may be found in References to Other Classes, below: (1) Filter, i.e., means to modify the composition of light, not limited in use to illumination; and (2) reflectors, refractors, etc., i.e., means to modify the distribution of light, not limited in use to illumination.

C. LIGHT SOURCE SUPPORTS OR HOUSINGS

This class (362) provides for combinations of a support for a light source and significant structure of a light source and for a light source support having structural features limited to use with a light source. Housings for light sources having more than nominally recited light source supporting means or having or comprising light modifier means of this class type are also provided for in this class. For light source housings, per se, and certain types of light source supports, see References to Other Classes, below.

D. SIGNALLING AND COMMUNICATION

Illuminating means, per se, which are used to convey information (e.g., "signal lanterns") are generally classified in this class (362) unless explicitly provided for elsewhere.

Means to convey information classifiable in another class combined with illuminating means is generally classified in the other class. Classes providing for such combinations may be found in References to Other Classes, below.

E. COMBINATIONS OF DEVICES PROVIDED FOR IN OTHER CLASSES AND ILLUMINATING MEANS

Combinations of devices provided for in other classes and illuminating means are classified with the device unless specifically provided for in this class (362) whether or not the illuminating means illuminates the device itself. See the search notes of the combination subclasses of this class (362) for the lines between this class and other relevant classes.

Classes providing for combinations of devices of the respective class type and illuminating means may be found in References to Other Classes, below.

F. SPECIAL APPLICATIONS

In general, the proximate function of the basic subject matter of this class (362) is merely to direct visible radiation in at least one direction to render a reflective object in that direction visible to an observer in the path of the light reflected from the object.

Illuminating means used to perform functions provided for in other classes are classified in such classes. See References to Other Classes, for class references to subsection D, above, for classes providing for illuminating means used in signalling and communication. Additional classes also providing for illuminating means used in performing the function of the classes may be found in References to Other Classes, below.

SECTION III - SUBCLASS REFERENCES TO THE CURRENT CLASS

SEE OR SEARCH THIS CLASS, SUBCLASS:

257,	see the search notes for exceptions to light modifying means found in this class (362).

SECTION IV - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

34,	Drying and Gas or Vapor Contact With Solids,   subclass 88 for drying apparatus and apparatus for contacting gases or vapors with solids which are provided with electric lamp illuminating means. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
40,	Card, Picture, or Sign Exhibiting,   particularly subclasses 480 , 502, and 541+ for means for illuminating subject matter of this class. (See Lines With Other Classes, "Signalling and Communication.")
40,	Card, Picture, or Sign Exhibiting,   particularly subclasses 480 , 502, and 541+ for illuminating means associated with the subject matter of this class (40). (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
73,	Measuring and Testing,   subclass 293 for illuminated liquid level and depth gauges. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
84,	Music,   subclass 464 for musical instruments combined with means to produce color or light effects. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
114,	Ships,   subclass 66 for observation ships having means to illuminate the object or field to be observed. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
116,	Signals and Indicators,   subclass 3 for combinations of horns and lamps, subclasses 18+ for illuminated mechanical code signal apparatus. (See Lines With Other Classes, "Signalling and Communication.")
116,	Signals and Indicators,   subclass 7 for mechanical burglar alarms combined with illuminating (e.g., floodlighting) means; subclasses 18+ for illuminated mechanical code signal apparatus; subclasses 48, 49, and 54 for mechanical illuminated vehicle motion and direction indicators; and subclasses 241+ for illuminated radio tuning dials. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
126,	Stoves and Furnaces,   subclass 209 for a combined body warmer and illuminating means; subclasses 235 and 241 for tool heaters with illuminating means; subclasses 255+ for lamp heaters; and subclass 267 for a combined lunch bucket heater and illuminating means. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
128,	Surgery,   for illuminating means for treating the human body with light rays. (See Lines With Other Classes, "Special Applications.")
165,	Heat Exchange,   for patents claiming heat exchange apparatus combined with a device to be heated or cooled thereby if no structure of said device is included other than the structure necessary for cooperation with the heat exchange apparatus. The mere naming of the device as a lamp, light fixture, etc. will not be sufficient to exclude the patent from Class 165. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
219,	Electric Heating,   subclass 553 for heating devices wherein the heating elements are ordinary incandescent lamps. (See Lines With Other Classes, "Special Applications.")
220,	Receptacles,   for housings, per se, for light sources including such housings having nominally recited light source supporting means. (See Lines With Other Classes, "Light Source Supports or Housings.")
232,	Deposit and Collection Receptacles,   subclass 13 for illuminated fare boxes. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
239,	Fluid Sprinkling, Spraying, and Diffusing,   appropriate subclasses for a fluid fuel distributor which may be disclosed as an illuminating burner. (See Lines With Other Classes, "Light Sources, Per Se.")
239,	Fluid Sprinkling, Spraying, and Diffusing,   subclasses 18+ for ornamental illuminated fountains. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
246,	Railway Switches and Signals,   subclass 473 for illuminated railway signals. (See Lines With Other Classes, "Signalling and Communication.")
246,	Railway Switches and Signals,   subclass 483 for illuminated semaphore arms. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
248,	Supports,   appropriate subclasses for supports which may support, but are not limited to, the support of light sources. See also the notes to the definition of subclass 382 , below. (See Lines With Other Classes, "Light Source Supports or Housings.")
250,	Radiant Energy,   subclasses 462.1+ for self-luminous articles. (See Lines With Other Classes, "Light Sources, Per Se.")
250,	Radiant Energy,   subclasses 200+ for illuminating means combined with photocells. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
294,	Handling: Hand and Hoist-Line Implements,   subclass 1.2 for a contact lens applicator combined with illuminating means and subclass 66.2 for illuminating means combined with underwater handling equipment. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
313,	Electric Lamp and Discharge Devices,   generally, for electric light sources, per se, of the nonconsumable electrode type. See Lines With Other Classes, "Combined With a Support, Combined With a Temperature Modifying Means" (subsection 1), "Combined With a Separable Casing, Jacket, Shield, or Envelope Protective Means," and "Combined With Optical Device or Having a Special Ray Transparent Envelope," in the class definition of Class 313 for the lines between Class 313 and this class (362). (See Lines With Other Classes, "Light Sources, Per Se.")
314,	Electric Lamp and Discharge Devices: Consumable Electrodes,   for consumable carbon arc-type light sources, per se. (See Lines With Other Classes, "Light Sources, Per Se.")
315,	Electric Lamp and Discharge Devices: Systems,   for an electric light source and circuitry for energizing the light source where the source of power (battery or generator) is not recited as an integral part of the claimed combination. (See Lines With Other Classes, "Light Sources, Per Se.")
340,	Communications: Electrical,   appropriate subclasses for claimed combinations whose proximate function is to convey information by means of electrically generated visible light. Such combinations must necessarily include a light source or light source and modifier and some (encoding) means which establishes a correspondence between the distribution, composition or location of the light and some other fact to be communicated. This requirement is based on the premise that, in signalling with visible light, the light itself is merely the carrier of or medium for the transfer of information and not the information itself. If the proximate function of the claimed combination is to convey information and illuminate or to convey information or illuminate, the combination is classifiable in this class (362). Subcombinations of subject matter of this class (362), for example, a light source and modifier which can be used for signalling (e.g., "signal lantern") or is used for signalling in nonclaimed disclosure, are classified in this class (362), unless explicitly provided for in Class 340. However, N.B., Class 340 has not been screened for such subcombinations which may have been originally classified there in the past. (See Lines With Other Classes, "Signalling and Communication.")
340,	Communications: Electrical,   subclasses 907+ for illuminating means combined with means to convey information. See also subsection D, above. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
352,	Optics: Motion Pictures,   subclasses 198+ for illuminating means used to project motion pictures. (See Lines With Other Classes, "Special Applications.")
353,	Optics: Image Projectors,   for illuminating means used to project images. (See Lines With Other Classes, "Special Applications.")
356,	Optics: Measuring and Testing,   subclass 46 for incandescent materials used in the testing of visible light or materials for optical properties; and subclasses 331+ for monochromators of the visible type. (See Lines With Other Classes, "Special Applications.")
359,	Optical: Systems and Elements,   subclass 885 for optical filters, and subclasses 484.01 through 494.01 for polarizers. (See Lines With Other Classes, "Special Applications.")
359,	Optical: Systems and Elements,   generally, for light modifiers which modify light from an illuminated object or field rather than directly from a light generating means. See subclass 515 for signal reflectors which may modify the distribution of (reflect) light directly from a light generating means; especially subclass 527 for a signal reflector for a signal source remote from the observer; subclass 528 for a signal reflector for a source behind the reflector; and subclasses 642-830 for lenses. (See Lines With Other Classes, "Light Modifiers, Reflectors, Refractors, etc.").
368,	Horology: Time Measuring Systems or Devices,   subclasses 67 and 227 for illuminated clocks.
369,	Dynamic Information Storage or Retrieval,   subclasses 100+ for apparatus and systems including illuminating means for electrically recording or reproducing photographic sound records. (See Lines With Other Classes, "Special Applications.")
372,	Coherent Light Generators,   appropriate subclasses for laser-type light sources, per se. (See Lines With Other Classes, "Light Sources, Per Se.")
374,	Thermal Measuring and Testing,   subclasses 100+ for detailed structures of thermometers.
374,	Thermal Measuring and Testing,   subclasses 100+ for the detailed structure of thermometers. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
385,	Optical Waveguides,   appropriate subclasses for light transmitting fibers, rods, or pipes. (See Lines With Other Classes, "Light Modifiers, Reflectors, refractors, etc.")
398,	Optical Communications,   various subclasses for light wave communications. (See Lines With Other Classes, "Signaling and Communication.")
399,	Electrophotography,   for illumination systems including light sources used in electrophotographic devices, specifically subclasses 9+ for diagnostics, subclasses 38+ for controls, subclasses 130+ for image formation, subclasses 168+ for charging, subclasses 177+ for exposure, subclasses 222+ for development, subclasses 297+ for transfer, subclasses 320+ for fixing, subclasses 343+ for cleaning, and subclasses 361+ for document handling. (See Lines With Other Classes, "Light Sources, Per Se.")
416,	Fluid Reaction Surfaces (i.e., Impellers),   subclass 5 for impellers combined with illuminating means. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
428,	Stock Material or Miscellaneous Articles,   subclass 38 for a mass transmissive of light through all layers and having an opaque border; subclass 415 for a stock material product in the form of a nonstructural laminate of glass or quartz next to epoxy; subclasses 426+ for a stock material product in the form of a nonstructural laminate embodying one or more layers of glass or quartz; and subclass 918 (a cross-reference art collection) for a material abnormally transparent. (See Lines With Other Classes, "Light Modifiers, Filter.")
431,	Combustion,   for flame-type light sources, per se, especially subclasses 100+ for a mantle type illuminating burner; subclasses 288+ for a candle; and subclasses 298+ for a wick-type liquid fuel burner. (See Lines With Other Classes, "Light Sources, per se.")
433,	Dentistry,   subclasses 29+ for illuminated or illuminating dental apparatus. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
439,	Electrical Connectors,   appropriate subclasses for an electrical connector, per se, such as a light bulb or tube socket which may also support or contribute to the support of the light bulb or tube. See also the notes to the definition of subclass 382 , below. (See Lines With Other Classes, "Light Source Supports or Housings.")
441,	Buoys, Rafts, and Aquatic Devices,   subclasses 13+ for illumination buoys. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
446,	Amusement Devices: Toys,   subclasses 47 , 91, 242, and 485+ for illuminated toys. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
454,	Ventilation,   for illuminating means combined with means to ventilate an enclosed space other than, or in addition to, a light source or light source enclosure, particularly subclasses 293+ for a ceiling diffuser with a light fixture. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
463,	Amusement Devices: Games,   subclasses 51+ for a simulated projectile game wherein a light ray is used to simulate a projectile. (See Lines With Other Classes, "Special Applications.")
472,	Amusement Devices,   subclasses 57+ and particularly subclass 61 for illusion apparatus with illuminating means appropriate therefor. (See Lines With Other Classes, "Special Applications.")
501,	Compositions: Ceramic,   subclasses 11+ for glass compositions which may act as a light filter. (See Lines With Other Classes, "Light Modifiers, Filter.")
600,	Surgery,   appropriate subclasses for illuminated diagnostic apparatus and for apparatus for treating the human body with light rays. In particular, search subclasses 101+ for endoscopes; subclass 11 for pharygoscopes; subclasses 185+ for nonpivoted gags; subclasses 184+ for tongue depressors; subclass 241 for pivoted specula; subclass 200 for reflectors with lamps; subclass 249 for miscellaneous illuminated diagnostic apparatus not otherwise classified; and subclass 200.11 for medicating apparatus. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
601,	Surgery: Kinesitherapy,   subclass 1 for kinesitherapy devices. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
602,	Surgery: Splint, Brace, or Bandage,   subclass 2 for orthopedic devices including light, heat, or electrical applicators. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
604,	Surgery,   subclasses 20+ for electrical energy applied to the body for therapeutic purposes. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")
606,	Surgery,   subclass 1 for surgical instrumentation. (See Lines With Other Classes, "Combinations of Devices Provided for in Other Classes and Illuminating Means.")

SECTION V - GLOSSARY

The following definitions of terms occurring frequently in the titles and definitions of this class are intended only to be used as aids in determining placement of subject matter within this class and do not necessarily encompass all usages of the terms in the art. Because the following definitions are generalized, certain subclass definitions may include definitions of the listed terms which deviate somewhat from the definitions given below. In such cases, the subclass definition is controlling. The use of ambiguous or equivocal art terms in the titles and definitions of this class has been avoided wherever possible. For the interpretation of such terms for classification purposes, see the notes to the definitions of "Modifier."

FILTER

A type of transparent or translucent selected wavelength modifier which absorbs light of at least one wavelength (i.e., color) and transmits light of another wavelength.

ILLUMINATING MEANS

Basic subject matter of the class or subcombinations thereof.

LIGHT SOURCE

An element (e.g., filament) or material (e.g., neon) which converts energy into visible radiant energy and/or the essential container of such an element or material, i.e., a light source envelope including the envelope base (e.g., light bulb, fluorescent tube). Unless otherwise specified, a light source is assumed to be a point source. For purposes of classification within this class, nominal recitations such as "light unit," "lamp," "headlight," etc., are assumed to denote only a light source.

MODIFIER

A recited element or combination of elements whose proximate function in the claimed combination is, according to the claim or the claimed disclosure, to alter the distribution or composition of light emitted from a light source by reflecting, refracting, or partially or completely absorbing the light.

(1) Note. Certain terms such as "lens," "shield," "screen," etc., are used in the art in some instances to denote modifiers and in other instances to denote structure whose proximate function is other than to modify light. For example, the term "lens" is used in some instances to denote means whose proximate function is to refract light and in other instances to denote merely a transparent window in a light housing whose proximate function is to protect the light source. Whether or not a means recited in a claim in such ambiguous terms is to be considered a modifier for placement within this class must be determined by the proximate function (according to the claim or the claimed disclosure) of the means in the claimed combination.

(2) Note. Certain terms such as "shade," "bowl," etc., are used in the art in some instances to denote recited modifiers which, according to the claim or claimed disclosure, function to modify light in two or more ways provided for separately in this class. A recited "bowl," for example, may, according to the claim or claimed disclosure, function in the claimed combination to diffuse light by internal scattering within the material of which the bowl is made (viz., translucent bowls) and reflect light from one of its surfaces. Such a modifier is classifiable in the first-occurring subclass providing for modifiers which perform at least one of its modifying functions.

REFLECTOR

A light modifying device having a surface which redirects incident light back into the medium from which it came. Reflectors are more commonly opaque but may be transparent. Light incident on the redirecting surface of a transparent reflector may arrive from the transparent material of the reflector itself in which case it is redirected back into the transparent material of the reflector, or it may arrive at the redirecting surface from some other material (e.g., air) in which case it is redirected back into the other material. Whether a recited transparent modifier is a reflector or some other type of modifier or both depends, for purposes of classification within this class, on its proximate function according to the claim or claimed disclosure.

REFRACTOR

A light modifier whose proximate function is to redirect light comprising a light pervious material having a pair of opposed surfaces, at least one of which is, at least in part, so angularly related to the other surface that the path of a light ray incident on one opposed surface of the material and the path of the same ray after it emerges from the material through the other opposed surface are not parallel. A nominally recited "lens" is considered a refractor for purposes of classification within this class only if the structural and functional characteristics of a refractor can be imputed to it from the claim or claimed disclosure. (See (1) Note to the definition of "Modifier," above).

SELECTED WAVELENGTH MODIFIER

A type of modifier which modifies light of at least one wavelength (color) differently from light of another wavelength. Such modifiers may reflect, refract or filter light.

TRANSLUCENT

Having the property of certain light pervious materials which results in the random internal scattering of light rays passing through the material.

TRANSPARENT

Having the property of certain light pervious materials which permits light rays to pass through the material in straight lines. Transparent illuminating means may or may not be light modifiers.

SUBCLASSES

1	DAYLIGHT LIGHTING:
	This subclass is indented under the class definition.  Subject matter having means for modifying the spectral character of light from an artificial source for the purpose of producing light simulating daylight. (1) Note. This subclass includes a combination of light sources of differing spectral outputs with means for mixing the outputs for a combined spectral output simulating daylight. SEE OR SEARCH THIS CLASS, SUBCLASS: 231, for plural light sources with different radiation outputs but not limited to simulated daylight. SEE OR SEARCH CLASS: 313,  Electric Lamp and Discharge Devices,   subclasses 110+ for optical device or special ray transmissive envelope, per se. 607,  Surgery: Light, Thermal, and Electrical Application,   subclass 95 for a cabinet to enclose a person and designed to expose the person to the sun"s rays and subclasses 88+ for devices to apply light to the body for therapeutic purposes.

2	Including selected wavelength modifier (e.g., filter):
	This subclass is indented under subclass 1.  Subject matter wherein the means for modifying the light has different effects on different light wavelengths such as absorbing some while transmitting others or reflecting others. SEE OR SEARCH THIS CLASS, SUBCLASS: 293, for an illumination light source or support combined with a selected wavelength modifier but not limited to simulating daylight. SEE OR SEARCH CLASS: 359,  Optical: Systems and Elements,   subclasses 885+ for light filters, per se.

3	PHOTOGRAPHIC LIGHTING:
	This subclass is indented under the class definition.  Subject matter comprising means to illuminate a subject and designed for use with a device (camera) for recording an image of the subject on photosensitive material and not classifiable elsewhere. (1) Note. This and the indented subclasses include subcombinations adapted to perfect the illumination function such as a "flashgun" designed to give a short burst of high intensity light when used with an unclaimed shutter actuator. SEE OR SEARCH THIS CLASS, SUBCLASS: 257+, for light projectors of general illumination utility including "photo flood lights" which fail to require structural features that would limit them to a photographic environment. SEE OR SEARCH CLASS: 174,  Electricity: Conductors and Insulators,   subclasses 250+ for a printed circuit board, per se. 219,  Electric Heating,   subclasses 260+ for resistive element igniters. 313,  Electric Lamp and Discharge Devices,   appropriate subclasses for photoflash bulbs, per se, of the nonconsumable type. 315,  Electric Lamp and Discharge Devices: Systems,   appropriate subclasses for systems including circuit means for energizing light sources of the nonconsumable type. 361,  Electricity: Electrical Systems and Devices,   subclasses 243+ for electrical systems for igniting combustible flashbulbs of general utility and wherein the flashbulbs are not limited by specific structure. See the reference to Class 431 below. 396,  Photography,   subclasses 155+ for combinations of photographic lights and significant camera structure which may include photoelectric means. 399,  Electrophotography,   for illumination systems including light sources used in electrophotographic devices, specifically subclasses 177+ for exposure. 431,  Combustion,   subclasses 357+ for photoflash bulbs, per se, of the combustible type and combinations which include means for igniting such specific bulbs. That section also provides for a nominal light source, such as a "flashbulb," or a nominal light modifier or "reflector" if combined with specific mechanical igniting means, such as percussive means and which may include light source support means. See the reference to Class 361 above which provides for more general utility electrical ignition means that are not limited by light source, modifier or support details. 439,  Electrical Connectors,   subclass 151 for a coupling part connector combined with means to allow repositioning of a mating part for engagement of different contacts on the mating part, e.g., a flash cube, etc.; and subclasses 620.01-620.34 for an electrical connector combined with a named circuit component; and see the notes appended thereto.

4	Light responsive:
	This subclass is indented under subclass 3.  Subject matter having an electrical device which responds to radiant light energy by (a) varying its electrical characteristics, (b) generating an electric current, or (c) means for determining the intensity or quantity of light emanating from a particular location or direction, wherein any of the aforementioned three are combined with photos:graphic illumination structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 6, for devices which respond to infrared radiation or other forms of thermal energy. SEE OR SEARCH CLASS: 250,  Radiant Energy,   subclasses 200+ for photocells, circuits and apparatus, especially subclass 215 where combined with a diverse type device. 315,  Electric Lamp and Discharge Devices: Systems,   subclasses 149+ where the system is combined with radiant energy sensitive control means. 356,  Optics: Measuring and Testing,   subclasses 213+ for photometers, per se, and see the search class notes for other fields of search. 361,  Electricity: Electrical Systems and Devices,   subclasses 173+ for relays and solenoids combined with light condition responsive means. 396,  Photography,   subclasses 155+ for combinations of photographic lights and significant camera structure which may include light sensing or indicating.

5	Measuring or indicating:
	This subclass is indented under subclass 3.  Subject matter including means for measuring or indicating some condition. SEE OR SEARCH THIS CLASS, SUBCLASS: 23+, for means to illuminate a scale or dial generally.

6	Heat responsive or control:
	This subclass is indented under subclass 3.  Subject matter including thermal sensitive means or means to facilitate the transfer of heat energy. (1) Note. It is recognized that all material objects are heat conductive and heat sensitive to some degree, but this subclass is limited to means for significantly utilizing the thermal reaction characteristics of the objects.

7	Convertible:
	This subclass is indented under subclass 3.  Subject matter including means which selectively perform two dissimilar functions by appropriate rearrangement of parts or means including specific adaptor structure. (1) Note. Included as dissimilar functions are such examples as continuous lighting and flash lighting, single flash and plural simultaneous flashes for greater light intensity; combustive light source and incandescent or gas discharge light source; and means for converting from manual lamp substitution to automatic indexing lamp substitution. SEE OR SEARCH THIS CLASS, SUBCLASS: 12, for the combination of a photoflash bulb and a flood lamp to be used simultaneously but without switching means for converting from one type to the other.

8	Combined:
	This subclass is indented under subclass 3.  Subject matter to which has been added a subcombination or assembly which is recognized as the subject matter of some other class. (1) Note. The subject matter of subclasses 10 to 18 below are considered so basic to the operation characterizing this photographic illumination section that they are dealt with as manifestations of the photographic light operation rather than a combination for this subclass. (2) Note. In this subclass are included combinations of a photographic light unit and (a) mechanical structure for connection to a camera or (b) cable storage means. SEE OR SEARCH THIS CLASS, SUBCLASS: 12, for the combination of a photoflash bulb and a flood lamp without control structure such as a selector switch.

9	With battery support means:
	This subclass is indented under subclass 8.  Subject matter wherein the added subcombination includes specific structure to hold an electrochemical cell. SEE OR SEARCH THIS CLASS, SUBCLASS: 102, for an illuminator combined with a cane, baton, umbrella or club and which may include a battery. 103+, for an illuminator combined with wearing apparel and may include a battery. 109+, for an illuminator and implement which may include a battery. 183+, for an electric self powered lamp, per se. SEE OR SEARCH CLASS: 248,  Supports,   subclass 503 for vehicle mounted hold-downs. 294,  Handling: Hand and Hoist-Line Implements,   cross reference art collection 903 for hand-held battery carriers. 307,  Electrical Transmission or Interconnection Systems,   subclass 150 for power pack systems. 429,  Chemistry: Electrical Current Producing Apparatus, Product, and Process,   subclass 100 for a battery support, per se.

10	Safety or interlocks:
	This subclass is indented under subclass 3.  Subject matter including means for protecting the user from undesirable effects, or means to protect photographic lighting apparatus or means that include additional structure that must be manipulated before normal operation of photographic lighting apparatus can proceed.

11	Plural light sources or light source supports:
	This subclass is indented under subclass 3.  Subject matter including two or more light sources, or holders for two or more light sources, or structure adapted to support or move said holders. (1) Note. This subclass, or those indented thereunder, include structure that facilitate proper orientation for photographic lighting such as rotary indexing mechanisms that may support and impart the desired movement to a support for plural light sources (flashcubes). SEE OR SEARCH THIS CLASS, SUBCLASS: 20, for automatic substitution of nonphotographic light sources. 184, for self-powered electric lamps with plural lamp bulbs. 209, for plural nonelectric light sources. 210, for plural carbon arc-type light sources. 227+, for plural light sources. 254, for light source substitution.

12	Diverse type or size:
	This subclass is indented under subclass 11.  Subject matter wherein the light sources are of different sizes or types. SEE OR SEARCH THIS CLASS, SUBCLASS: 228+, for plural light sources of a diverse nature for general illumination.

13	Lamp substitution or selection:
	This subclass is indented under subclass 11.  Subject matter including (a) means for replacing one light source with another, or (b) means for selectively energizing plural light sources one at a time.

14	Indexing (i.e., dynamic):
	This subclass is indented under subclass 13.  Subject matter including means to move a light source or support from a nonilluminating position to an illuminating position, or which allows such movement to be made by the user from one predetermined position to another illuminating position. (1) Note. Mere light source socket means that allow the user to insert a light bulb is not sufficient for this or the indented subclasses. (2) Note. This and the indented subclasses include means for moving a light source support for plural light sources such as a flashcube, where not elsewhere classified. SEE OR SEARCH THIS CLASS, SUBCLASS: 20, for automatic substitution of nonphotographic light sources. 254, for light source substitution. SEE OR SEARCH CLASS: 431,  Combustion,   subclasses 357+ for (a) the combination of a specific Class 431 type combustible flashbulb and a nominal light modifier or reflector; or (b) the subcombination of a percussive actuator and indexing means for a combustible flashbulb; or (c) a nominal flashbulb with mechanical ignition means.

15	With electrical ignition:
	This subclass is indented under subclass 14.  Subject matter combined with means to apply electrical energy to a combustible light source. SEE OR SEARCH CLASS: 431,  Combustion,   subclasses 357+ for a specific Class 431 combustible flashbulb and electrically ignited primer without a specific light modifier or specific light reflector.

16	Including specific light modifier:
	This subclass is indented under subclass 3.  Subject matter including specific means to affect light waves emitted from an illuminating light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 257+, for the combination of a light source or support and a light modifier for general illumination. 317, for a light modifier, per se, for illumination.

17	Plural diverse:
	This subclass is indented under subclass 16.  Subject matter wherein the specific means includes two or more different light modifying structures. SEE OR SEARCH THIS CLASS, SUBCLASS: 10, for the combination which may include a safety screen.

18	Selective or adjustable:
	This subclass is indented under subclass 16.  Subject matter wherein the specific means permit adjustment of the orientation or position of light affecting surfaces. SEE OR SEARCH THIS CLASS, SUBCLASS: 228+, for adjustable or positionable light modifiers, per se. 269+, and 277+, for similar subject matter for general illumination.

19	WITH POLARIZER:
	This subclass is indented under the class definition.  Subject matter comprising a light source which emits a ray of light having substantially equal components of wave energy in various directions transverse to the path of the ray and means to alter the light so that the ray has a greater wave energy component in one transverse direction than in another. (1) Note. Where the illuminating devices include only a reflector or other means which may incidentally polarize the light; the patent is not classified in this subclass. This subclass includes only illuminating devices where means are provided especially for the purpose of polarizing the light emitted by the light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 293, for a light source or support therefor and a nonpolarizing filter. 296.01, through 296.1, for illuminating devices with reflectors. SEE OR SEARCH CLASS: 313,  Electric Lamp and Discharge Devices,   subclass 112 for an electric lamp having a light polarizer as an integral part thereof. 343,  Communications: Radio Wave Antennas,   subclass 756 for antennas with a polarization filter or converter; and subclasses 909+ for radio wave polarizers, per se. 359,  Optical: Systems and Elements,   subclasses 484.01 through 494.01for (a) light polarizing compositions, (b) light polarizing devices, and (c) polarizing systems not provided for in some other optical class.

20	AUTOMATIC SUBSTITUTION OF POWER SUPPLY OR LIGHT SOURCE:
	This subclass is indented under the class definition.  Subject matter having either (a) one energy source and first and second light sources and means to supply energy from the energy source to the second light source in response to failure of the first light source; or (b) first and second energy sources and one light source and means to cause the second energy source to supply energy to the light source in response to failure of the first energy source; or (c) first and second energy sources and first and second light sources and means to cause the second energy source to supply energy to the second light source in response to failure of either the first energy source or the first light source.

21	WITH FILAMENT CONTROL MEANS RESPONSIVE TO FRACTURE OF LIGHT SOURCE ENVELOPE OR ENCLOSURE:
	This subclass is indented under the class definition.  Subject matter wherein the light source is an incandescent electric filament enclosed in an envelope and may additionally be contained in an enclosing means and wherein electric circuit means is provided to connect the filament to a source of electrical energy and wherein means are provided to disconnect the filament from its source of electrical energy or to reduce or otherwise inhibit the flow of energy through the filament in response to the breakage of the envelope or the enclosing means.

22	Fluid or pressure responsive:
	This subclass is indented under subclass 21.  Subject matter having an enclosure which is sealed and a fluid within the enclosure and wherein the means to disconnect the filament from its source of electrical energy, etc., includes a switch and wherein the enclosure, the fluid and the switch are so interrelated that a break in the enclosure either (a) changes the amount of fluid in the enclosure to open the switch, or (b) changes the pressure of the fluid in the enclosure to open the switch and thus open the circuit to the filament.

23	ILLUMINATED SCALE OR DIAL:
	This subclass is indented under the class definition.  Subject matter combined with means, claimed or disclosed as bearing two or more markings corresponding to the same number of consecutive measurements of some variable other than merely the position, composition, or distribution of light from the illuminating structure of this class wherein the illuminating structure contributes to the illumination of the markings. (1) Note. Generally, means for driving, operating or controlling indicator will exclude classification in this Class. For example, a movable pointer, clockwork mechanism, measuring means, condition responsive sensor or positions indicating sensor. (2) Note. Combinations including specific structure of machinery or apparatus provided for in other classes, beyond recitations of structure necessary to set out the relationship of the illuminated scale, dial or markings, will generally be classified with that machinery or apparatus. (3) Note. The variable of the definition above could be just the position of a control knob. The mere disclosure of illuminating an unmarked panel, plate or knob is insufficient for classification herein. SEE OR SEARCH THIS CLASS, SUBCLASS: 5, for a photographic illuminator with measuring or indicating means. See other subclasses directed to the basic illuminating structure of this class where means indicating the position, compositions or distribution of light may be claimed or disclosed. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclass 204 for illuminated license plates, subclasses 480 and 502 for illuminated changeable exhibitors, and subclasses 541+ for illuminated signs. 73,  Measuring and Testing,   subclass 293 for a liquid level gauge with illuminating means and subclass 499 for a speed or acceleration measuring device with an illuminated reading device. 116,  Signals and Indicators,   subclass 250 for illumination of an indicator and see search notes for other search areas. 177,  Weighing Scales,   subclasses 177+ for such scales with illumination. 250,  Radiant Energy,   subclass 463.1 for self-luminous dials, etc. 340,  Communications: Electrical,   see notes above. 368,  Horology: Time Measuring Systems or Devices,   subclass 67 for illuminated clocks with recited drive or clockwork mechanism; and subclass 227 for clock dials, per se.

24	Telephone dial:
	This subclass is indented under subclass 23.  Subject matter wherein the means is part of an instrument for reproducing sounds at a distance wherein the sounds are converted into electrical impulses for transmission by wire and whose circuit is independent of the means for illuminating the instrument. (1) Note. The dial must be claimed for placement in this subclass rather than in subclass 88 below. SEE OR SEARCH THIS CLASS, SUBCLASS: 88, for a general illuminator for a telephone instrument. SEE OR SEARCH CLASS: 379,  Telephonic Communications,   subclasses 441+ for telephone transmitter dial lights.

25	Radiator water temperature meter:
	This subclass is indented under subclass 23.  Subject matter wherein the means bearing two or more markings indicates the temperature of the water or water vapor in a heat exchange device which transfers heat from water or water vapor to air. (1) Note. Subject matter of this subclass type may comprise, for example, an attachment to a radiator cap or part of the radiator cap of an automobile or be attached to the filter neck or radiator of an automobile. SEE OR SEARCH CLASS: 374,  Thermal Measuring and Testing,   subclasses 100+ for detailed structure of thermometers, particularly subclass 146 for radiator cap-mounted thermometers.

26	Edge illuminated modifier or light rod/pipe:
	This subclass is indented under subclass 23.  Subject matter wherein the illuminating structure includes (a) an object made of light transmitting material with a relatively narrow surface or side disposed adjacent a light source; or (b) a transparent, relatively elongated structure which transmits light rays from one point to another within the confines of its outer surface or surfaces by internal reflections or nodal transmission. (1) Note. This and indented subclass include, for example, the combination of a relatively thin light transmitting object and a light source located in an aperture extending through its major surfaces or embedded between said major surfaces. SEE OR SEARCH THIS CLASS, SUBCLASS: 31, for edge lighted panels without a dial or scale. 551+, for illumination means which includes light fibers, rods or pipes without a dial or scale. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclasses 423 and 541+ for edge illuminated signs and including fiber optics. 116,  Signals and Indicators,   subclasses 200 , 244, and 286+ for indicators using light guides. 340,  Communications: Electrical,   subclasses 815.4+ , particularly subclasses 815.42+ for light piping used in electrically controlled visual signal indicators. 385,  Optical Waveguides,   appropriate subclasses for light transmitting fibers, rods, or pipes, per se.

27	Plural light sources:
	This subclass is indented under subclass 26.  Subject matter wherein the illuminating structure includes more than one light source.

28	Illuminated through meter case:
	This subclass is indented under subclass 23.  Subject matter wherein the scale or dial is contained within an instrument case and the illuminating structure is external to the case; the case having an opening through which the scale or dial is observed and either another opening or light transparent portion through which light from the external illuminating structure enters the case to illuminate the scale or dial. (1) Note. The instrument has no structure to measure a quantity and the dial has no arrangement or structure to classify the instrument or dial in an appropriate measuring or indicating class. SEE OR SEARCH CLASS: 33,  Geometrical Instruments,   subclasses 792+ for dial type distance measuring, and subclasses 501+ for measuring type gauges. 73,  Measuring and Testing,   subclass 293 for illuminated liquid level gauges, subclass 499 for a speed or acceleration illuminated reading device, subclasses 388+ for fluid pressure gauges, and subclass 431 for instrument casings. 116,  Signals and Indicators,   subclass 250 for illumination of an indicator and see search notes for other search areas. 324,  Electricity: Measuring and Testing,   subclasses 76.11+ for measuring, testing or sensing electricity; subclasses 160+ for electrical speed measuring devices; and subclass 156 for casings, per se. 374,  Thermal Measuring and Testing,   subclasses 100+ for detailed structure of thermometers in such an arrangement.

29	Internal light source:
	This subclass is indented under subclass 23.  Subject matter wherein the means includes a meter housing or casing and the illuminating structure includes a light source within said housing or casing.

30	Indirect illumination:
	This subclass is indented under subclass 29.  Subject matter wherein the illuminating structure includes light modifiers or directors that are interposed between the means and the light source. (1) Note. This subclass includes combinations wherein a light source is located behind the viewing face of a dial or scale plate that is translucent or transparent. SEE OR SEARCH THIS CLASS, SUBCLASS: 153, for edge lighted modifiers or light conducting fibers, rods or pipes which may indirectly illuminate other elements.

33	WORK-TABLE LIGHTING SYSTEM:
	This subclass is indented under the class definition.  Subject matter having a plurality of light sources arranged to direct a condensed and substantially shadowless light onto a surface on which objects upon which manual operations are to be performed are supported. (1) Note. Subject matter of this subclass type includes, for example, systems for illuminating patients for surgical operations. SEE OR SEARCH THIS CLASS, SUBCLASS: 227+, for plural light sources for general illumination. 257+, for a single light source or light source support combined with a light modifier for general illumination.

34	CHEMILUMINESCENT LIGHTING:
	This subclass is indented under the class definition.  Subject matter having an emitter of light produced by a flameless chemical reaction combined with a light modifier or light modifier support structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 84, for illuminating structure combined with separate fluorescent or phosphorescent material. SEE OR SEARCH CLASS: 206,  Special Receptacle or Package,   subclasses 219+ for a package for mixing. 252,  Compositions,   subclass 700 for a chemiluminescent composition. 313,  Electric Lamp and Discharge Devices,   subclasses 483+ for a Class 313 device combined with a luminescent solid or liquid material.

35	REVOLVING:
	This subclass is indented under the class definition.  Subject matter in which part or all of the illuminating means rotates continually in one direction about an axis. (1) Note. Subject matter of this subclass type includes, for example, lighthouse beacons or rotating flashing devices which are mechanical. SEE OR SEARCH THIS CLASS, SUBCLASS: 166+, for means to block a light source which are not continually revolving. 269+, for light projector which is rotatable. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclasses 480 and 502 for revolving signs. 340,  Communications: Electrical,   subclasses 471+ for revolving lights used as hazard warning or emergency lights with vehicles.

36	VEHICLES STEERING SWITCHES LIGHT SOURCES:
	This subclass is indented under the class definition.  Subject matter which includes a steering mechanism or an element of a steering mechanism of a vehicle and wherein the motion of the steering mechanism or the element controls the direction taken by the vehicle; a multiple position switch or plural electric switches, a switch operator to make or break the multiple switch positions or to operate selectively the plural electric switches; a plurality of electric light sources, generally one source being directed forward and at least one light source directed to each side of a vehicle, and in which the motion of the steering mechanism or the steering mechanism element controls the switch operator to control circuits to at least some of the plurality of electric lights. SEE OR SEARCH CLASS: 315,  Electric Lamp and Discharge Devices: Systems,   subclass 81 for vehicle headlight systems where no light support is claimed or wherein the headlight is only nominally recited.

37	VEHICLE STEERING MECHANISM OR ELEMENT MOVES PIVOTED LAMP OR LAMP SUPPORT:
	This subclass is indented under the class definition.  Subject matter comprising means to change the direction of movement of a transporting device, or a movable element of such means, and a tiltable or rotatable lamp or lamp support wherein motion imparted to the direction changing means or to the element thereof to change the direction of movement of the transporting device is also used concurrently to tilt and rotate the lamp or lamp support. (1) Note. The subject matter of this subclass type includes lamps or lamp supports which are directly supported by the steering gear or the steering gear element so that the motion of the steering gear or element to direct a vehicle is also the same motion given to the lamp or lamp support. SEE OR SEARCH CLASS: 315,  Electric Lamp and Discharge Devices: Systems,   subclass 81 for vehicle headlight systems where no light support is claimed or wherein the headlight is only nominally recited.

38	Through fluid pressure control:
	This subclass is indented under subclass 37.  Subject matter having a fluid motion transmission means controlled by the steering gear or steering gear element connected to the lamp or to the lamp support so that the motion imparted by the steering gear or steering gear element to direct the movement of a vehicle is also used concurrently to transmit motion through the fluid motion transmission means to tilt or rotate the lamp or lamp support. (1) Note. A dashpot to damp the oscillation of a pivoted lamp or pivoted lamp support is not considered a fluid motion transmission means of this subclass type.

39	Pivoted lamps having plural unlike motions controlled additionally by manual movement:
	This subclass is indented under subclass 37.  Subject matter wherein the lamp or lamp support is rotatable in a horizontal plane in response to the movement of the transporting device or a movable element of such means and the lamp or lamp support or at least a portion of the lamp or lamp support is rotatable also in a vertical plane and manual means is connected to the lamp or lamp support or to the portion of the lamp support to pivot the lamp or lamp support in the vertical plane. (1) Note. The manual means includes mechanism responsive to the foot, hand or the other member of a human operator to impart motion to pivot the lamp or lamp support or portion thereof in the vertical plane.

40	Manual or steering mechanism control of pivoted lamp:
	This subclass is indented under subclass 37.  Subject matter having means operated by the motion of some portion of the human body to tilt or rotate the lamp or lamp support independently of the steering mechanism or element.

41	Plural lamps, one only moves in turn direction:
	This subclass is indented under subclass 37.  Subject matter which includes means responsive to the movement of the vehicle steering mechanism or element when a turn by the vehicle is being made in one direction relative to linear movement of the vehicle to rotate the pivoted lamp or pivoted lamp support in the same direction as the turn but not when a turn by the vehicle is being made in the opposite relative direction. (1) Note. Typically, subject matter of this subclass type includes two headlamps where one headlamp turns and the other remains stationary when a vehicle steering mechanism turns in one direction. When the vehicle turns in the other direction, the one headlamp is stationary and the other turns in the opposite direction to the first turn.

42	Tire, wheel or brake backing plate movement turns lamp:
	This subclass is indented under subclass 37.  Subject matter wherein the steering mechanism or element includes or comprises a rotatable and turnable annular or circular vehicle supporting member which contacts and rolls on a vehicle supporting surface; or wherein a turnable means is provided to support means to stop or decelerate the vehicle and wherein the lamp or lamp support is tilted or rotated by the turning motion of the vehicle supporting member or the stopping means support.

43	Plural lamps concurrently moved:
	This subclass is indented under subclass 37.  Subject matter wherein there are two lamps, each rotatable about an axis, or two lamp supports, each having a portion rotatable about an axis, a motion transmission means connecting the steering gear or the steering gear element to both of the rotatable lamps or to the two rotatable portions of the lamp supports so that motion imparted by the steering gear or the steering gear element to turn or direct a vehicle is also imparted through the motion transmission means to rotate both of the lamps concurrently or rotate both of the lamp support portions with the turning or direction of a vehicle.

44	Single connection to steering mechanism or element:
	This subclass is indented under subclass 43.  Subject matter wherein there is a single mechanical connection between the steering gear or the steering gear element and the motion transmission means.

45	First lamp motion moves second lamp:
	This subclass is indented under subclass 44.  Subject matter wherein the motion transmission means is so connected to the two rotatable lamps or to the two rotatable lamp support portions that the motion imparted to the motion transmission means by the steering gear or the steering gear element first turns one of the two rotatable lamps and the motion of the "one" rotatable lamp in turn rotates the second rotatable lamp or the motion imparted to the motion transmission means by the steering gear or steering gear element first turns one of rotatable lamp support portions and the motion of the "one" rotatable lamp support portion in turn rotates the second rotatable lamp support portion.

46	Steering post arm or rod motion controls first lamp:
	This subclass is indented under subclass 45.  Subject matter wherein the steering gear or the steering gear element includes either a first movable member to receive motion from a human operator; a movable shaft which receives the motion from the first movable member; a second movable member receiving the motion from the movable shaft or a movable rod moved by the second movable member and the motion transmission means is connected to either the first movable member, the movable shaft, the second movable member or the movable rod.

47	Through link and lever transmission means:
	This subclass is indented under subclass 46.  Subject matter wherein the motion transmission means includes a rigid rod connected to (a) each of the lamps to rotate each of the lamps about its axis, or (b) to each of the rotatable portions of the lamp supports to rotate each of the rotatable lamp support portions about its axis and a rigid member connected directly to each of the rigid rods to impart motion to the rods.

48	Tie rod motion controls first lamp motion:
	This subclass is indented under subclass 45.  Subject matter wherein motion is imparted to the motion transmission means to move the two rotatable lamps or lamp portions concurrently by a movable bar which is part of the steering gear and which functions to join two movable spindle arms of a vehicle steering arrangement so that the spindle arms turn concurrently in the same direction.

49	Steering post, arm rod motion controls lamps:
	This subclass is indented under subclass 44.  Subject matter wherein the steering gear includes, or the steering gear element is a movable member to receive motion from a human operator, a movable shaft which receives the motion from the movable member responsive to the human operator, a movable member receiving the motion from the movable shaft, or a movable rod moved by the member receiving the motion from the movable shaft.

50	Through link and lever transmission means:
	This subclass is indented under subclass 49.  Subject matter wherein the motion transmission means includes a rigid crank rod directly connected to the rotatable lamp or lamp support to pivot the lamp or lamp support about an axis and a rigid movable member connected to the crank rod so that the motion of the rigid movable member given by the movable steering gear element turns the crank rod to impart a turning motion to the rotatable lamp or lamp support to move the lamp or lamp support about its axis.

51	Tie rod motion control:
	This subclass is indented under subclass 44.  Subject matter wherein motion is imparted to the motion transmission means to move the two rotatable lamps or lamp support portions concurrently by a movable bar which is part of the steering gear and which function to join two movable spindle arms of a vehicle steering arrangement so that the spindle arms turn concurrently in the same direction.

52	Tie rod motion control:
	This subclass is indented under subclass 43.  Subject matter wherein motion is imparted to the motion transmission means to move the two rotatable lamps or lamp support portions by a movable bar which is part of the steering gear and which functions to join two movable spindle arms of a vehicle steering arrangement so that the spindle arms turn concurrently in the same direction.

53	Steering post, arm or rod controlled:
	This subclass is indented under subclass 37.  Subject matter wherein the rotatable lamp or lamp support is connected through a motion transmission means to the means to change the direction of a vehicle or a movable element of such means which includes or is a movable steering member to receive motion from a human operator; a movable shaft which receives the motion from the member responsive to a human operator; a movable member receiving the motion from the movable shaft or a movable rod moved by the member receiving the motion from the movable shaft.

54	Through link and lever motion transmission:
	This subclass is indented under subclass 53.  Subject matter wherein the motion transmission means includes a rigid crank rod directly connected to the rotatable lamp or lamp support to pivot the lamp or lamp support about an axis and a rigid movable member connected to the crank rod so that the motion of the rigid movable member received from the movable steering member or the movable shaft or the movable member receiving the motion from the shaft or the movable rod causes the crank rod to pivot the lamp or lamp support about the axis.

55	Stub shaft, stub shaft arm or attachment element controlled:
	This subclass is indented under subclass 37.  Subject matter wherein the lamp or lamp support is rotatable and the means to change the direction of movement of a transporting device includes or the movable element of such device is a steering knuckle which supports a steering wheel spindle or an arm connected to the knuckle; a motion transmission means connecting the knuckle or the arm connected to the knuckle to the lamp or lamp support so that motion imparted by the knuckle or the arm connected to the knuckle to turn or direct a vehicle is also imparted through the motion transmission means to rotate the lamp or lamp support concurrently with the turning of a vehicle. (1) Note. Attachments which are motion transmission elements which are connected to a pivoted lamp or lamp support are here.

56	Through telescopic motion transmission means:
	This subclass is indented under subclass 55.  Subject matter wherein the motion transmission means or the rotatable lamp or lamp support includes a motion transfer linkage which permits a portion of one member to slide within a portion of another member while transferring the motion of the knuckle or knuckle arm to rotate the lamp or lamp support.

57	Tie rod element controlled:
	This subclass is indented under subclass 37.  Subject matter wherein the vehicle steering gear includes or the vehicle steering gear element is a bar capable of motion which functions to move both steering wheels of a vehicle in the same direction and the lamp is rotatable about an axis or the lamp support has a portion rotatable about an axis; and a motion transmission means connects the bar to the rotatable lamp or the rotatable portion of the lamp support so that the motion of the bar is used to direct the movement of a vehicle and concurrently to impart motion to the rotatable lamp or the rotatable portion of the lamp support through the motion transmission means. (1) Note. Many patents here include a spring forming part of the rotating means which spring upon rotative movement to the rotative lamp or rotative portion of the lamp support stores energy to revert the rotating lamp or rotating portion of the lamp support back to its initial position before movement by the steering gear or steering gear element. Springs are used to bias the lamp or support against movement in a vertical direction.

58	With manual disconnect:
	This subclass is indented under subclass 57.  Subject matter which includes a means to release the rotatable lamp or the rotatable portion of the lamp support from the control of the bar and the motion transmission means. (1) Note. The means to release may be between a tie rod and the motion transmission means, part of the transmission means, between the rotatable lamp or the rotatable portion of the lamp support and the motion transmission means or part of the rotatable lamp or rotatable part of the lamp support.

59	Through link and lever motion transmission means:
	This subclass is indented under subclass 57.  Subject matter wherein the motion transmission means includes a rigid rod connected to the rotatable lamp or the rotatable portion of the lamp support to pivot the lamp or the rotatable portion of the lamp support about its axis and therein a movable rigid member connected to the rigid rod so that the motion imparted by the bar is transmitted through the movable member to the rod to turn the pivoted lamp or rotatable portion of the lamp support about its axis.

60	With pin and slot motion transmission means:
	This subclass is indented under subclass 59.  Subject matter which includes a movable connection between (a) the bar and the motion transmission means, (b) the rigid rod and the rigid member, (c) the rigid rod and the rotatable lamp or the rotatable portion of the lamp support, or (d) any two members of the motion transmission means wherein the movable connection includes a movable elongated opening formed in a member or by movable elements forming such an opening and a movable second member shaped to move within the opening or between the elements forming the opening whereby upon movement of the elongated opening; the second member between or within the opening will move or when the second member moves within or between the member or elements forming the member the elongated opening will move to transmit motion.

84	LIGHT SOURCE OR LIGHT SOURCE SUPPORT AND LUMINESCENT MATERIAL:
	This subclass is indented under the class definition.  Subject matter comprising a light source or light source support combined with a separate fluorescent or phosphorescent material. (1) Note. This subclass does not include a light source, per se, wherein fluorescent material is merely applied to a lamp bulb. See the search class notes below. SEE OR SEARCH THIS CLASS, SUBCLASS: 34, for chemiluminescent lighting structure that may include fluorescent or phosphorescent material. 217.08, for elongated light sources of the fluorescent type wherein the fluorescent material is part of the light sources. 260, for fluorescent light source combined with modifiers. SEE OR SEARCH CLASS: 250,  Radiant Energy,   subclasses 483.1+ for luminescent devices responsive to invisible radiation; and subclasses 493.1+ for radiant energy generation and sources that may include fluorescent or phosphorescent materials. 252,  Compositions,   subclasses 301.2+ for fluorescent or phosphorescent compositions. 313,  Electric Lamp and Discharge Devices,   subclasses 483+ and the subclasses specified in the notes thereto for electric lamps, per se, and electronic tubes which have combined therewith a fluorescent or phosphorescent material.

85	WITH CONTROL CONSOLE:
	This subclass is indented under the class definition.  Subject matter combined with a panel or cabinet on which are mounted switches, indicators or other apparatus used for centrally controlling electrical or mechanical devices, not classified elsewhere. SEE OR SEARCH THIS CLASS, SUBCLASS: 23, for scale or dial illuminators. 86, through 96, for specific electrical or mechanical devices combined with illuminating structure.

86	SOUND EQUIPMENT ILLUMINATOR:
	This subclass is indented under the class definition.  Subject matter combined with a sound transducer with means for illuminating some part of the transducer. (1) Note. In this and the indented subclasses are placed patents whose claims all relate to the illuminating features to be applied to the transducer and such combinations with modifications of the transducer merely for the promotion of illumination. If specific structure is claimed in the transducer with which the source of light is combined, which specific structure is independent of the illumination, the patent is classified with the transducer whether the illuminating features are broadly or specifically claimed.

87	Phonograph:
	This subclass is indented under subclass 86.  Subject matter wherein the transducer is an instrument for reproducing sound usually by means of the vibration of a stylus or needle following a spiral groove on a revolving disc or cylinder.

88	Telephone:
	This subclass is indented under subclass 86.  Subject matter wherein the transducer is an instrument for reproducing sounds at a distance wherein the sounds are converted into electrical impulses for transmission by wire and whose circuit is independent of the means for illuminating the transducer. (1) Note. This subclass includes illuminator attachments for a telephone wherein the illuminator includes mechanical switch actuator structure intended to interact with telephone structure such as a switch arm which would engage and be operated by the movement of the telephone receiver. SEE OR SEARCH THIS CLASS, SUBCLASS: 24, for means to illuminate a telephone dial plate other than just by an external light source placed for general illumination of the telephone as a whole. SEE OR SEARCH CLASS: 379,  Telephonic Communications,   appropriate subclasses for specific telephones and systems.

89	MACHINERY LIGHTING:
	This subclass is indented under the class definition.  Subject matter in combination with a device including an assemblage of parts that transmit forces, motion, and energy one to another in a predetermined manner and generally support structure wherein illuminating means of the class is attached to or built into the device to illuminate some part of the device or work area of the device, and not classified elsewhere. (1) Note. Illuminating light supports are considered basic subject matter of the class even if they include machine elements, and are classified in subclasses 382+ below rather than being considered a combined device for subclasses 89+. (2) Note. Hand held machine tools or implements are classified in subclasses 109+ below. (3) Note. Mere supports or holders of objects other than illuminating elements are classified below with the specific type of object support or holder, e.g., subclasses 98+, paper holders; subclasses 127+, furniture; subclasses 135+, viewing mirror; and subclasses 154+, container. (4) Note. Heating or refrigerating and fluid dispensers are provided for below in subclasses 92+ and 96. SEE OR SEARCH THIS CLASS, SUBCLASS: 109+, for hand-held machine tools combined with an illuminator. SEE OR SEARCH CLASS: 34,  Drying and Gas or Vapor Contact With Solids,   subclass 88 for apparatus with illuminating means. 83,  Cutting,   subclasses 520+ for cutting apparatus with illuminating or viewing means for work. 269,  Work Holders,   subclass 11 for holder illuminating means. 400,  Typewriting Machines,   appropriate subclasses for typewriters, per se. 408,  Cutting by Use of Rotating Axially Moving Tool,   subclass 16 for combinations with signal, indicator, illumination or optical means. 416,  Fluid Reaction Surfaces (i.e., Impellers),   subclass 5 for such surfaces with illumination means. 425,  Plastic Article or Earthenware Shaping or Treating: Apparatus,   subclasses 169+ for the class device with an illuminator.

90	Sewing:
	This subclass is indented under subclass 89.  Subject matter wherein the machine performs the function of uniting or ornamenting material by means of a strand which is inserted (stitched) in the material at spaced locations by a needle having an eye, or equivalent structure, and enchained or otherwise locked in position. SEE OR SEARCH CLASS: 112,  Sewing,   subclasses 2+ for sewing machines, per se.

91	Cleaning:
	This subclass is indented under subclass 89.  Subject matter wherein the machine is designed or adapted for the removal of foreign matter, not elsewhere classified. SEE OR SEARCH CLASS: 15,  Brushing, Scrubbing, and General Cleaning,   subclass 324 for vacuum cleaners with an illuminator for the work area. 134,  Cleaning and Liquid Contact With Solids,   subclass 113 for apparatus combined with alarm, signal, indicating, testing, inspecting, illuminating or display means.

92	WITH HEATER OR REFRIGERATOR:
	This subclass is indented under the class definition.  Subject matter combined with apparatus for heating or cooling articles not otherwise classified. (1) Note. Apparatus including an enclosure with a display or observation window for articles that might be placed in the enclosure is classified in subclass 126 below. SEE OR SEARCH THIS CLASS, SUBCLASS: 126, for an illuminated showcase with heat insulation or dissipation means. 218, for an elongated source light unit with cooling means; and subclasses 264, 294, 345, 364, 373, and 437 for other illumination structure with heating or cooling means. SEE OR SEARCH CLASS: 99,  Foods and Beverages: Apparatus,   subclass 341 for cooking apparatus with illuminating means. 126,  Stoves and Furnaces,   subclass 97 for a heating and illuminating stove using a liquid fueled wick, subclass 213 for an illuminated stove lid or top, subclass 267 for a dinner bucket combined with a lantern heated by fluid fuel, or subclass 388.1 for a liquid heater having an open-top vessel that may include a lid and an indicator or signaler feature. 165,  Heat Exchange,   subclasses 58+ for heating and cooling apparatus. 219,  Electric Heating,   subclass 220 for a heating device with light means and subclasses 339+ for a fluid heater of the radiant energy type. 312,  Supports: Cabinet Structure,   subclass 236 for cabinets for heating and cooling and subclass 116 for the refrigerated showcase type. 340,  Communications: Electrical,   subclass 640 for a heater element condition indicator and subclass 655 for a heating circuit energization indicator. 432,  Heating,   subclass 32 for combinations with indicating, illuminating or inspection means.

93	Nonelectric illuminator:
	This subclass is indented under subclass 92.  Subject matter wherein the apparatus is combined with a light fixture which burns a material to produce light. SEE OR SEARCH THIS CLASS, SUBCLASS: 159, 209, and 266, for nonelectric illuminators, per se, of the class type.

94	With door-controlled switch:
	This subclass is indented under subclass 92.  Subject matter combined with a circuit breaker linked with a closure of said apparatus to control the operation of a light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 100, 135, and 155, for door or closure-controlled illuminator switches combined with other apparatus. SEE OR SEARCH CLASS: 200,  Electricity: Circuit Makers and Breakers,   subclasses 61.62+ for closure operated circuit breakers. 307,  Electrical Transmission or Interconnection Systems,   subclasses 10.8+ for automobile light systems. 315,  Electric Lamp and Discharge Devices: Systems,   subclass 84 for circuits dealing with a door or closure controlled load device.

95	WITH SWITCH PLATE OR SOCKET:
	This subclass is indented under the class definition.  Subject matter combined with a cover for an electrical circuit breaker or electrical receptacle, not classified elsewhere. SEE OR SEARCH CLASS: 200,  Electricity: Circuit Makers and Breakers,   subclasses 310+ for illuminated switch indicators. 340,  Communications: Electrical,   subclasses 640 and 656 for pilot-light indicators.

96	WITH FLUID DISTRIBUTER:
	This subclass is indented under the class definition.  Subject matter combined with structure for distributing or dealing out liquid, gaseous, or fluidic materials for purposes other than supplying fuel or heat exchange materials to an artificial light source, not classified elsewhere. SEE OR SEARCH THIS CLASS, SUBCLASS: 118, for the combination of an illuminator and a pen or pencil. 149, for illuminating structure combined with a subceiling with fluid handling means. 218, 294, 345, 364, 373, and 437, for illumination structure of the class with ventilating or cooling means. SEE OR SEARCH CLASS: 222,  Dispensing,   especially subclass 113 for dispensing apparatus combined with an illuminator and see the notes thereat. 239,  Fluid Sprinkling, Spraying, and Diffusing,   subclass 284.2 for a liquid sprayer for a headlamp lens.

97.1	DISPLAY BACKLIGHT:
	This subclass is indented under the class definition.  Subject matter comprising means including a light source for illuminating a generally planar transparent, or translucent display from behind, not elsewhere classified. (1) Note. Included here are light table-type illuminators. (2) Note. Included in this subclass are drafting tables with the above illuminating structure for the purpose of facilitating tracing or tables for inspecting fabrics or other thin flexible materials. SEE OR SEARCH CLASS: 108,  Horizontally Supported Planar Surfaces,   subclass 23 for planar surfaces with illumination.

97.2	LCD backlight:
	This subclass is indented under subclass 97.1.  Subject matter comprising means including a light source for illuminating a liquid crystal display from behind. (1) Note. LCD backlights (i.e., direct-type) are used to distribute light transmitted from light sources uniformly over the back surface of a liquid crystal display. (2) Note. Direct-type backlights are also used for LCD’s in large dimensions whereas edge light type is used for LCD’s of small dimensions. (3) Note. Most of the light sources in this subclass are incandescent or fluorescent. SEE OR SEARCH CLASS: 349,  Liquid Crystal Cells, Elements and Systems,   subclass 64 for similar subject matter with details of LCD.

97.3	Having solid-state light source:
	This subclass is indented under subclass 97.2.  Subject matter wherein the light source is a solid-state light source.

97.4	With transparency or film holder:
	This subclass is indented under subclass 97.1.  Subject matter including means to secure or hold a light transmitting or transparent image in front of the light source. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclasses 361 through 367for photographic transparency viewer. 352,  Optics: Motion Pictures,   appropriate subclasses for the presentation of a series of pictures at such a rate as to create an illusion of motion due to the persistency of vision of the observer, and especially subclass 129 for motion-picture filmstrip viewer. 353,  Optics: Image Projectors,   appropriate subclasses for viewers with image projection, and especially subclass 26 for microfilm viewers. 359,  Optical: Systems and Elements,   subclasses 466 through 477for stereoscopic viewers, subclasses 616 and 617 for kaleidoscopes, and subclasses 804-807 for viewers with specific optics or relatively movable lens and transparency for viewing only a selected portion of the transparency.

98	WITH PAPER, BOOK OR COPY HOLDER:
	This subclass is indented under the class definition.  Subject matter combined with means for supporting sheet-like reading or writing material, and not classifiable elsewhere. SEE OR SEARCH THIS CLASS, SUBCLASS: 97.1, through 97.4, for support means including a transparent or translucent supporting surface over a light source. 127, for articles of furniture, in general, combined with illuminating means. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclasses 714+ for tables with illumination means, subclasses 341+ for copyholders, and subclasses 541+ for illuminated signs.

99	Notepad:
	This subclass is indented under subclass 98.  Subject matter wherein the combination constitutes a unitary, readily carried structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 109, for other readily carried structure combined with illuminating means.

100	DOOR KNOB OR KEYHOLE ILLUMINATOR:
	This subclass is indented under the class definition.  Subject matter combined with a device attached to some part of a door or its knob to illuminate the knob or a hole for receiving a key not elsewhere classified. SEE OR SEARCH THIS CLASS, SUBCLASS: 94, for the combination of a heater or refrigerator and illumination means controlled by a door. 137, and 155, for the combination of a vanity case and illumination means controlled by a closure. SEE OR SEARCH CLASS: 200,  Electricity: Circuit Makers and Breakers,   subclasses 61.62+ for the combination for a switch and closure, closure operator or accessory. 315,  Electric Lamp and Discharge Devices: Systems,   subclass 84 for the combination of a load of the class type and door or closure controlling means.

101	WITH LIQUID CONTAINER:
	This subclass is indented under the class definition.  Subject matter combined with a receptacle for holding a liquid other than fuel or heat exchange materials for a light source, not classified elsewhere. SEE OR SEARCH THIS CLASS, SUBCLASS: 96, for subject matter of this class combined with a fluid dispenser. 118, for a pen and illuminator. 154+, for a general container with illumination means. 318, for a light modifier of the fluid medium type. 417, for a font support. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclasses 406+ for display devices with gas or liquid movement. 99,  Foods and Beverages: Apparatus,   subclass 341 for cooking apparatus with illumination means. 134,  Cleaning and Liquid Contact With Solids,   subclass 113 for apparatus of the class combined with illuminating means.

102	WITH CANE, BATON, UMBRELLA OR CLUB:
	This subclass is indented under the class definition.  Subject matter combined with a cane, baton, umbrella or club of the hand-held type, and not classified elsewhere. SEE OR SEARCH THIS CLASS, SUBCLASS: 109+, for an illuminator combined with other hand-held implements. 157+, for self-powered portable illuminators of the hand-held type, especially subclasses 202+. SEE OR SEARCH CLASS: 33,  Geometrical Instruments,   subclasses 293+ for sighting rods or targets. 84,  Music,   subclass 477 for twirling and conducting batons. 135,  Tent, Canopy, Umbrella, or Cane,   subclasses 16+ for umbrellas and canes, per se.

103	WITH WEARING APPAREL OR BODY SUPPORT:
	This subclass is indented under the class definition.  Subject matter combined with (a) a garment, covering or clothing, (b) a harness to be worn by an animal, or (c) an article generally composed of precious stones and metal (jewelry) and of an analogous nature or imitations of the same which are intended to be worn upon the person as ornaments, not otherwise classified. SEE OR SEARCH THIS CLASS, SUBCLASS: 191, for a flashlight casing with support means. 382, for strap supports for an illuminator. 396, for clamp or hook supports for an illuminator. SEE OR SEARCH CLASS: 2,  Apparel,   appropriate subclasses for garments or clothing, per se. 36,  Boots, Shoes, and Leggings,   subclasses 122+ for boots and shoes, per se. 119,  Animal Husbandry,   subclasses 858+ , especially subclass 859, for an animal collar including an illumination element when the collar is more than nominally recited.

104	Jewelry:
	This subclass is indented under subclass 103.  Subject matter wherein a light source or light source support is combined with articles generally composed of precious metal and stones of an analogous nature not otherwise classified or imitations of the same, which are intended to be worn upon the person as ornaments. SEE OR SEARCH CLASS: 24,  Buckles, Buttons, Clasps, etc.,   appropriate subclasses for jewelry fasteners. 63,  Jewelry,   appropriate subclasses for jewelry, per se.

105	Head covering or lamp:
	This subclass is indented under subclass 103.  Subject matter wherein the garment, covering or harness is to be worn on the head of the animal or supported by some portion of the head. (1) Note. A head covering as used in this and the indented subclasses refers to elements which extend generally along and contiguous to the head surface, and (a) over the top of the head, usually in arch or dome-like fashion, and/or (b) peripherally around at least a portion of the front, sides and/or back of head in general conformance with head contour, as exemplified by a mere head band. SEE OR SEARCH CLASS: 2,  Apparel,   subclasses 171+ for head coverings, per se. 351,  Optics: Eye Examining, Vision Testing and Correcting,   subclasses 41+ for spectacles and eyeglasses, per se.

106	Hat:
	This subclass is indented under subclass 105.  Subject matter wherein the covering extends generally over the major portion of the head as distinguished from a mere head band or open framework. SEE OR SEARCH THIS CLASS, SUBCLASS: 396, for hook or clamp-type lamp supports for headgear. SEE OR SEARCH CLASS: 2,  Apparel,   subclass 422 for cap attachments for receiving light unit structure.

107	Nonelectric light unit:
	This subclass is indented under subclass 106.  Subject matter adapted for use with a nonelectric type illuminator.

108	Shoulder suspension or torso encircling (e.g., vest, neck-sling):
	This subclass is indented under subclass 103.  Subject matter wherein the garment, clothing or harness includes means passing over the shoulder or encircling the torso of the animal. (1) Note. This subclass includes sling-type suspension means where an element passes over one shoulder, around the neck, and over the other shoulder. SEE OR SEARCH CLASS: 2,  Apparel,   subclass 310 for shoulder suspension or torso or limb encircling garment supporters or retainers. 224,  Package and Article Carriers,   subclasses 5+ for body and belt attached carriers. 441,  Buoys, Rafts, and Aquatic Devices,   subclass 89 for body attached, worn, supporting, or encircling buoyant devices combined with diverse class art devices.

109	WITH IMPLEMENT OR HAND HELD HOLDER THEREFOR:
	This subclass is indented under the class definition.  Subject matter combined with a hand-held device whose function is to perform, or assist in the performance of a specific operation, or a hand-held holder for such device other than a container, not classified elsewhere. (1) Note. This section includes a hand-held holder for a key in subclass 116, below. (2) Note. An illuminator with a handle but without specific structure for holding a tool element will be classified according to its illuminator structure or function, such as a round flashlight in subclass 202. SEE OR SEARCH THIS CLASS, SUBCLASS: 23+, for hand-held instruments with an illuminated scale or dial. 34, for chemiluminescent illuminators that may be hand held. 96, for hand-held fluid dispensers with illuminators. 101, for hand-held liquid containers and illuminators. 102, an illuminator combined with a cane, baton, umbrella or club. 136+, for vanity case container with a mirror and illuminator. 138+, for an inspection device with a mirror and illuminator. 154+, for an illuminator combined with a container. 157+, for self-powered lamps, per se, which may include a handle, and see (2) Note above. SEE OR SEARCH CLASS: 33,  Geometrical Instruments,   especially subclasses 348+ for measuring instruments of the class type combined with illumination means, such as a spirit level. 269,  Work Holders,   subclass 11 for holder illuminating means. 349,  Liquid Crystal Cells, Elements and Systems,   subclasses 61+ for liquid crystal devices with illumination. 359,  Optical: Systems and Elements,   subclasses 385+ , 475, 591+, and 798+ for optical devices with illuminating means. 600,  Surgery,   subclasses 108 , 160+, 179+, 183, 191, 213, 224, 242, 246, and 249 for various diagnostic instruments combined with illuminating means.

110	Firearm:
	This subclass is indented under subclass 109.  Subject matter wherein the device is a weapon from which a shot may be discharged by gunpowder or structure formed to resemble a weapon. SEE OR SEARCH CLASS: 42,  Firearms,   appropriate subclasses for firearms, per se, and note especially subclass 1 . 353,  Optics: Image Projectors,   subclass 42 for a light spot pointer projector, per se; and subclass 43 for a projector shaped like a pistol or gun. 463,  Amusement Devices: Games,   subclasses 51+ for a simulated projectile game wherein a light ray is used to simulate a projectile.

111	Convertible to light gun:
	This subclass is indented under subclass 110.  Subject matter wherein illuminator structure may be attached to the weapon in such a way that a shot may not be discharged. (1) Note. This subclass includes patents wherein a light source or switch mechanism is placed in the bore of the weapon.

112	Imitation firearm:
	This subclass is indented under subclass 110.  Subject matter which includes a hand-held portable illumination device having a housing shaped to resemble a firearm having a hand grip by which the device is held and carried. SEE OR SEARCH THIS CLASS, SUBCLASS: 191, for an electric self-powered lamp having a handle or other mounting means. SEE OR SEARCH CLASS: 446,  Amusement Devices: Toys,   subclasses 405+ and 403 for a toy gun having a lamp and subclass 485 for other toys having lamps.

113	Light controlled by trigger:
	This subclass is indented under subclass 110.  Subject matter wherein the class illumination structure includes a circuit breaker by a part of a means moved by a finger to fire the weapon.

114	Switch on handle:
	This subclass is indented under subclass 110.  Subject matter wherein the weapon includes an electric circuit breaker located in a handle of the weapon. SEE OR SEARCH THIS CLASS, SUBCLASS: 112, for an imitation firearm that may include a switch in the handle thereof.

115	Barber:
	This subclass is indented under subclass 109.  Subject matter wherein the device is for cutting, dressing or trimming hair. SEE OR SEARCH THIS CLASS, SUBCLASS: 91, for a cleaning machine with illuminator.

116	Key holder:
	This subclass is indented under subclass 109.  Subject matter wherein the instrument includes means for retaining a lock key.

117	Iron:
	This subclass is indented under subclass 109.  Subject matter wherein the device includes a metallic mass which, when heated, may be used to apply heat to another object. (1) Note. This subclass includes flat irons, and soldering irons not classified elsewhere. SEE OR SEARCH THIS CLASS, SUBCLASS: 92+, for heaters that are not hand held and combined with illumination means not classified elsewhere. SEE OR SEARCH CLASS: 219,  Electric Heating,   subclass 220 for electrical heating devices with light means; and subclasses 227+ for hand manipulative heating devices, especially subclass 230 where combined with light means. 340,  Communications: Electrical,   subclass 640 for electrical pilot-light indicators.

118	Pen or pencil:
	This subclass is indented under subclass 109.  Subject matter wherein the device is a coating implement with material supply. SEE OR SEARCH CLASS: 401,  Coating Implements With Material Supply,   appropriate subclasses for coating implements, per se.

119	Hand tool (e.g., knife, drill):
	This subclass is indented under subclass 109.  Subject matter wherein the device is used to facilitate a mechanical operation such as driving, forming, shaping or finishing an article. SEE OR SEARCH CLASS: 30,  Cutlery,   appropriate subclasses for hand cutting implements, per se. 81,  Tools,   appropriate subclasses for hand tools, per se.

120	Elongate type:
	This subclass is indented under subclass 119.  Subject matter wherein the device includes an elongated shank, bit or blade portion. SEE OR SEARCH THIS CLASS, SUBCLASS: 102, for hand-held devices with elongated portions such as canes, batons, umbrellas or clubs.

121	WITH STAR OR CROSS:
	This subclass is indented under the class definition.  Subject matter comprising a light source or light source support combined with either (a) a figure with five or more points that represents a star, or (b) a figure with an upright bar traversed by a horizontal bar, not classified elsewhere. SEE OR SEARCH THIS CLASS, SUBCLASS: 227+, for plural light sources. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   appropriate subclasses for movable display exhibitors or those with the illusion of motion, and with illuminating means. 428,  Stock Material or Miscellaneous Articles,   subclass 3 for a cruciform, per se; and subclass 11 for a star ornament, per se.

122	WITH PLANT-LIKE ORNAMENT OR WREATH:
	This subclass is indented under the class definition.  Subject matter comprising a light source or light source support combined with vegetation (i.e., any member of living beings typically lacking locomotive movement or obvious nervous or sensory organs) or parts (e.g., blossoms, leaves) or simulations thereof and not classifiable elsewhere. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   appropriate subclasses for movable display exhibitors or those with the illusion of motion, and with illuminating means. See especially subclasses 480 , 502, 543+, and 614+. 428,  Stock Material or Miscellaneous Articles,   appropriate subclasses for ornaments, per se, especially subclass 10 for a wreath-type ornament.

123	Tree:
	This subclass is indented under subclass 122.  Subject matter wherein the member is a woody perennial plant having an elongated main stem generally with few branches on its lower part, or a shrub or herb, or an imitation thereof, and not classified elsewhere.

124	WITH SIMULATED ANIMAL:
	This subclass is indented under the class definition.  Subject matter comprising a light source or light source support combined with an imitation of a living being of the nonvegetable type (i.e., typically differing from plants in its capacity for spontaneous movement and rapid motor response to stimulation) and not classifiable elsewhere. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclasses 411+ for movable figure display, subclass 540 for illuminated dummies, and subclass 543 for displays with the illusion of motion. 446,  Amusement Devices: Toys,   subclass 392 for a figure toy luminous eyes and subclass 485 for other toys having lamps.

125	WITH SHOWCASE OR SHOW WINDOW:
	This subclass is indented under the class definition.  Subject matter combined with an enclosure that includes a transparent wall or with a transparent wall for such an enclosure which permits an article that may be placed within the enclosure to be seen from outside the enclosure, and not classifiable elsewhere. SEE OR SEARCH THIS CLASS, SUBCLASS: 133, for cabinets without a transparent display wall combined with illuminating means. 154+, for containers without a transparent display wall combined with illuminating means. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclasses 446+ for changeable exhibitors and subclass 540 for illuminated display dummies. 312,  Supports: Cabinet Structure,   subclass 114 for a showcase-type refrigerator and subclass 223.5 for cabinets with illumination means.

126	Heat insulation or dissipation type:
	This subclass is indented under subclass 125.  Subject matter wherein the enclosure includes structure to minimize the transfer of thermal energy through a wall of the enclosure, or to dispel undesirable thermal energy, e.g., refrigerated showcase. SEE OR SEARCH CLASS: 62,  Refrigeration,   subclasses 246+ for apparatus of the display type.

127	WITH FURNITURE:
	This subclass is indented under the class definition.  Subject matter combined with articles of the support type used for the general convenience of occupants of a room or other occupiable space, and not classifiable elsewhere. (1) Note. This subclass, and those indented hereunder, deal with articles that function to merely support an object. Articles, whose function is dynamic, are generally classified in the subclasses above or in the class providing for the function, e.g., telephone, refrigerator, machinery, etc. (2) Note. In this subclass, and those indented hereunder, the supporting is of articles other than a light unit, per se. For example, a base with a vertical standard with a light socket attached thereto, is considered a light support and is not classified here unless there is also recited additional structure for supporting some diverse art object such as a projecting shelf for an ash tray. SEE OR SEARCH THIS CLASS, SUBCLASS: 97.3, for table with a transparent or translucent top located over a light source. SEE OR SEARCH CLASS: 108,  Horizontally Supported Planar Surfaces,   subclass 23 for a table with illumination means. 211,  Supports: Racks,   appropriate subclasses. 248,  Supports,   appropriate subclasses.

128	With viewing mirror:
	This subclass is indented under subclass 127.  Subject matter combined with a smooth surface intended to form an image of an object other than a light source by reflection. (1) Note. Mirrored medicine wall cabinets or nonportable mirrored vanity or makeup stands/racks are classified here rather than in subclasses 136+ below. SEE OR SEARCH THIS CLASS, SUBCLASS: 135+, for a mirror combined with illumination structure. 136+, for portable vanity cases. SEE OR SEARCH CLASS: 312,  Supports: Cabinet Structure,   subclass 224 for cabinet structure with a mirror.

129	Adjustable:
	This subclass is indented under subclass 128.  Subject matter wherein elements of the combination may be readily changed in position with respect to one another or to a stationary object as a unit. SEE OR SEARCH THIS CLASS, SUBCLASS: 139, for adjustable mirrors and illumination means, and also see subclasses 141 and 142+.

130	Bed:
	This subclass is indented under subclass 127.  Subject matter wherein the article permits one to lie and sleep. SEE OR SEARCH CLASS: 5,  Beds,   appropriate subclass for bed details, per se.

131	Chair, stool or sofa:
	This subclass is indented under subclass 127.  Subject matter wherein the article is a device for supporting the weight of a person in a seated position. SEE OR SEARCH CLASS: 297,  Chairs and Seats,   subclass 217.6 for an illumination means combined with a modified chair structure.

132	Plural diverse type article holders (e.g., drawer and hook):
	This subclass is indented under subclass 127.  Subject matter wherein the article has structurally different means for supporting articles, e.g., table top and a standard with a bracket with a hook portion.

133	Cabinet:
	This subclass is indented under subclass 127.  Subject matter wherein the article is an enclosure with article supporting means. (1) Note. A recited "cabinet" will not be excluded from this subclass if the disclosure indicates that it is intended to hold articles other than light unit components. (2) Note. A "cabinet" for this subclass does not include partial enclosures that have one side or top open permanently, i.e., a display rack that is closed on only three of four sides is classified above. SEE OR SEARCH THIS CLASS, SUBCLASS: 136+, for portable vanity cases. 154+, for enclosures or containers of the portable type. SEE OR SEARCH CLASS: 312,  Supports: Cabinet Structure,   appropriate subclasses for specific cabinet structure and subclass 223.5 for cabinet structure combined with illumination means.

134	Base:
	This subclass is indented under subclass 127.  Subject matter wherein the article of furniture is a block-like mass with article supporting means or surface but without spacing legs, panels or pedestal.

135	WITH VIEWING MIRROR:
	This subclass is indented under the class definition.  Subject matter combined with a smooth surface intended to form an image of an object other than a light source by reflection, not classified elsewhere. SEE OR SEARCH THIS CLASS, SUBCLASS: 128+, for articles of furniture combined with a mirror and illumination means. SEE OR SEARCH CLASS: 353,  Optics: Image Projectors,   appropriate subclasses for image projection involving reflectors. 355,  Photocopying,   appropriate subclasses for image projection printing involving reflectors. 359,  Optical: Systems and Elements,   subclasses 838+ for image forming reflectors, per se. 399,  Electrophotography,   for illumination systems including light sources used in electrophotographic devices, specifically subclasses 177+ for exposure.

136	With vanity case:
	This subclass is indented under subclass 135.  Subject matter combined with a small box for containing toilet articles. (1) Note. This subclass includes portable collapsible or hand-carried cases as distinguished from the dressing table furniture type of subclass 128 above. This subclass also includes mirrored purses or bags. SEE OR SEARCH THIS CLASS, SUBCLASS: 128+, for dressing table-type mirrored vanities without a carrying handle. 154+, for illuminated containers without a mirror. SEE OR SEARCH CLASS: 132,  Toilet,   subclass 83 for a powder box and applicator with a mirror.

137	With closure light source control:
	This subclass is indented under subclass 136.  Subject matter combined with a device linked with a closure of said box to control the operation of a light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 94, for a heater or refrigerator door controlled switch. 155, for a container with a door or lid controlled switch.

138	Inspection type:
	This subclass is indented under subclass 135.  Subject matter wherein the surface is structurally combined with a light source support which adapts the resultant combination for the inspection of inaccessible places and which usually includes a handle. SEE OR SEARCH THIS CLASS, SUBCLASS: 109+, for an illuminator and hand-held implement. SEE OR SEARCH CLASS: 351,  Optics: Eye Examining, Vision Testing and Correcting,   subclasses 221 and 243 for eye examining instruments with illumination means. 600,  Surgery,   subclass 300 for diagnostic instruments with illumination means.

139	Adjustable:
	This subclass is indented under subclass 138.  Subject matter wherein the resultant combination has means allowing the adjustment of the various elements thereof.

140	With plural light sources or diverse light modifiers:
	This subclass is indented under subclass 135.  Subject matter combined with (a) more than one light source or light source support, or (b) different types of devices that can change light. SEE OR SEARCH THIS CLASS, SUBCLASS: 227+, for illumination with plural light sources. 257+, for a light source and a light modifier.

141	Adjustable:
	This subclass is indented under subclass 140.  Subject matter wherein elements of the combination may be readily changed in position with respect to one another or to a stationary object as a unit.

142	Adjustable:
	This subclass is indented under subclass 135.  Subject matter wherein elements of the combination may be readily changed in position with respect to one another or to a stationary object as a unit.

143	Janus-faced mirror-and-light projector:
	This subclass is indented under subclass 142.  Subject matter wherein the surface element faces in a different or opposite direction than that of a light-directing element of an integral light-beam apparatus. (1) Note. This subclass includes combination wherein the light rays emitted by the integral light-beam apparatus are not intended to strike the mirror surface either directly or indirectly, e.g., vehicle spot light with an integral rear view mirror facing in the opposite direction. SEE OR SEARCH THIS CLASS, SUBCLASS: 459+, for illuminating means combined with a vehicle.

144	Repositionable as a unit:
	This subclass is indented under subclass 142.  Subject matter wherein a combination of said surface and light source, support or modifier may be readily changed in position as a unit. SEE OR SEARCH THIS CLASS, SUBCLASS: 269, for the combination of a light modifier and light source or support that is tiltable or rotatable as a unit. 504, and 523+, for the combination of a vehicle with operating means to move a pivoted lamp. 527, for a vehicle aperture with a retractable headlight.

145	WITH STATIC STRUCTURE:
	This subclass is indented under the class definition.  Subject matter wherein a light source support or light source is combined with a component of a constructed stationary body, not classified elsewhere. (1) Note. In this subclass and those indented hereunder are placed patents whose claims all relate to the illuminating features to be applied to a body component and such combinations with modifications of the body merely for the promotion of illumination. If novelty is claimed in the body or component structure with which a source of light is combined, which novelty is independent of the illumination, the patent is classified with the other body. (2) Note. In this subclass and those indented hereunder, support elements for a light source or unit which do not also function as supports for components of the stationary body or building are not considered body components for placement in this section. That is, structure which has no other purpose than that of supporting a light source is not considered a static structure component for this section. (3) Note. Class 52, Static Structures (e.g., Buildings), takes building structure including features having functions in addition to merely supporting the illuminating means or forming the enclosure, barrier or other structure illuminated. In interpreting this line, the presence of a claim to building structure not including illuminating means is considered conclusive of the fact that such additional function features are present. SEE OR SEARCH THIS CLASS, SUBCLASS: 100, for door knob and keyhole illuminators. 101, for illumination means combined with a liquid container. SEE OR SEARCH CLASS: 52,  Static Structures (e.g., Buildings),   subclass 28 for the subject matter of that class combined with artificial illuminating means, and see the search class note there with respect to this class. 135,  Tent, Canopy, Umbrella, or Cane,   subclass 91 for tents with lighting means. 359,  Optical: Systems and Elements,   subclasses 591+ for building interior illumination with outside light.

146	Staircase:
	This subclass is indented under subclass 145.  Subject matter wherein the component is part of a flight of stairs, its supporting framework, casing, baluster or railing.

147	Wall or ceiling:
	This subclass is indented under subclass 145.  Subject matter wherein the component is a vertical upright or overhead enclosing part of a room or building.

148	Subceiling:
	This subclass is indented under subclass 147.  Subject matter comprising means forming a secondary horizontal barrier spaced below and coextensible with a ceiling and at least one light source supported relative to the secondary barrier or the ceiling such that light from the source is directed through or reflected from at least a portion of the secondary barrier.

149	With fluid handling means:
	This subclass is indented under subclass 148.  Subject matter combined with means directing the flow of a liquid or gas.

150	Common subceiling and light unit support:
	This subclass is indented under subclass 148.  Subject matter wherein at least one light source is supported by means supporting the secondary barrier.

151	Valence or cornice:
	This subclass is indented under subclass 145.  Subject matter wherein the component is (a) a framed heading to conceal curtain tops or fixtures, or (b) a wall or ceiling molding.

152	With border, fence, gate or awning:
	This subclass is indented under subclass 145.  Subject matter wherein the component is structure forming a border, fence, gate or awning. SEE OR SEARCH THIS CLASS, SUBCLASS: 146, for interior fencing in the form of staircase posts and boards with illumination means. SEE OR SEARCH CLASS: 135,  Tent, Canopy, Umbrella, or Cane,   subclass 91 for canopies, per se. 256,  Fences,   appropriate subclasses for fences, per se. 404,  Road Structure, Process, or Apparatus,   subclasses 6+ for constructed stationary bodies such as traffic guides, markers and curbs.

153	Floor:
	This subclass is indented under subclass 145.  Subject matter wherein the component is a surface of a structure on which one travels. SEE OR SEARCH THIS CLASS, SUBCLASS: 146, for staircase illuminators. 152, for borders or curbs with illumination means. SEE OR SEARCH CLASS: 404,  Road Structure, Process, or Apparatus,   appropriate subclasses for road structure, per se.

153.1	Pavement:
	This subclass is indented under subclass 145.  Subject matter wherein the component is a paved surface on which vehicles travel, or on which vehicles are parked. SEE OR SEARCH CLASS: 404,  Road Structure, Process, or Apparatus,   subclasses 9+ for lamp housings mounted in, or on, a paved surface wherein no electrical structure is claimed.

154	WITH CONTAINER:
	This subclass is indented under the class definition.  Subject matter combined with a receptacle for diverse articles not classified elsewhere. (1) Note. In this subclass and those indented thereunder are placed patents whose claims all relate to the illuminating features to be applied to a receptacle and such combinations with modifications of the receptacle merely for the promotion of illumination. If novelty is claimed in the receptacle with which a source of light is combined, which novelty is independent of the illumination, the patent is classified with the receptacle. (2) Note. See the subclasses above for specific receptacles. Receptacles for illuminator elements, such as a casing for the batteries of a self-powered light source, are not treated as receptacles for diverse articles for this section but rather are classified with the particular illumination feature. SEE OR SEARCH THIS CLASS, SUBCLASS: 101, for a liquid container with illumination means. SEE OR SEARCH CLASS: 206,  Special Receptacle or Package,   appropriate subclasses.

155	With closure controlled switch:
	This subclass is indented under subclass 154.  Subject matter combined with a circuit breaker linked with a closure for said receptacle to control the operation of a light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 94, for the combination of a heater or refrigerator, illumination means and a door controlled switch. 137, for a vanity case with a mirror and a closure controlled switch. SEE OR SEARCH CLASS: 315,  Electric Lamp and Discharge Devices: Systems,   subclass 84 for a door or closure controlled load device of that class type.

156	Bag, purse or trunk:
	This subclass is indented under subclass 154.  Subject matter wherein the receptacle is of the type that is carried by a person on a trip.

157	SELF POWERED LAMP:
	This subclass is indented under the class definition.  Subject matter comprising (a) a casing to support an energy source on or within the casing and a light source or a support for the light source powered by the energy source; or (b) a support to hold an energy source and a light source or a support for the light source powered by the energy source; or (c) a light modifier connected to a casing or support designed to support an energy source used to produce light wherein the modifier directs light from a light source powered by the energy source; or (d) a battery and a light source totally supported by the battery; or (e) subcombinations and elements of, and accessories limited in use to, an integral self-energized lamp which produces illumination for general lighting not provided for elsewhere. (1) Note. A reservoir for a source of energy may or may not be claimed in patents before 1920. The total disclosure of patents prior to 1920 including such a reservoir for a gas, liquid or solid burner if meeting the requirements of this subclass will allow the placement of a patent in this subclass. (2) Note. A gas, liquid or solid energy source, capable of chemically uniting with the oxygen of the air to produce primarily light and heat secondarily, a burner for the gas, liquid or solid energy source and an optical modifier of light generated by the energy source in the burner will be placed here when the energy source is contained integrally with the structure having the burner and the light modifier. (3) Note. Electric energy sources such as primary and secondary batteries and electric generators are here when the source is integral with the light generator.

158	With hermetic seal:
	This subclass is indented under subclass 157.  Subject matter wherein the casing encloses the energy source and the light source powered by the energy source and wherein the casing permits light emitted by the light source to exit through a portion of the casing which is light transmissive and wherein (a) the casing is sealed against liquid, gas or dust, or (b) an element or elements of the lamp are sealed against liquid, gas or dust, or (c) the lamp is encased in a covering which is transparent to the light emitted by the lamp, and which is sealed against liquid, gas or dust. (1) Note. The lamp may be enclosed in a container which may be partially or totally transparent to the light emitted by the light source, or the lamp casing may be sealed by structure such as a covering, a coating of material or joints or the casing may be sealed as by a gasket. Further, a light element may be coated or potted to make the element fluid proof. SEE OR SEARCH THIS CLASS, SUBCLASS: 21+, for lamps which open the electrical circuit to the light bulb in case of fracture of the light source envelope or enclosure. 164, for nonelectric miners safety lamps (Davy lamp).

159	Nonelectric:
	This subclass is indented under subclass 157.  Subject matter wherein the light is generated by means other than means which converts energy associated with an electric current into visible radiant energy. (1) Note. Structure which is a subcombination of a nonelectric light unit but specialized for use with such a light unit is placed here or in the subclasses indented hereunder. SEE OR SEARCH THIS CLASS, SUBCLASS: 209, for plural nonelectric lamps not of the self-powered type. 228+, for plural lamps, one of which may be of the nonelectric, nonself-powered type. 266+, for nonelectric light source, not of the self-powered type combined with a light modifier. 382+, for light supports for or with a nonelectric light source of the nonself-powered type. SEE OR SEARCH CLASS: 431,  Combustion,   subclasses 100+ for a mantle type illuminating burner and subclasses 298+ for a wick type liquid fuel burner. Also see the search class note under the class definition of Class 431.

160	Acetylene:
	This subclass is indented under subclass 159.  Subject matter having means for burning acetylene for the emission of light and means to modify the emitted light. SEE OR SEARCH CLASS: 48,  Gas: Heating and Illuminating,   appropriate subclasses for gas generators. 239,  Fluid Sprinkling, Spraying, and Diffusing,   appropriate subclasses for a fluid distributor which may be disclosed as an illuminated burner.

161	Candle type:
	This subclass is indented under subclass 159.  Subject matter having a light unit comprising a wick or other capillary fuel conveying structure on which fuel burns, the wick being imbedded in a meltable solid fuel, e.g., wax, etc., which is meltable by the heat of the flame and is fed to the flame by the wick, or structure peculiarly adapted for supporting the solid fuel and a modifier. SEE OR SEARCH THIS CLASS, SUBCLASS: 190, for imitation candles. SEE OR SEARCH CLASS: 431,  Combustion,   subclasses 288+ for a candle or residual candle apparatus.

162	Collapsible housing:
	This subclass is indented under subclass 161.  Subject matter having means to effect a reduction in size of the supporting structure from an operative condition to an inoperative condition.

163	With chimney:
	This subclass is indented under subclass 161.  Subject matter wherein the modifier is a single unit to encompass the candle and transmit light and having an opening at the top and bottom for the passage of air. SEE OR SEARCH THIS CLASS, SUBCLASS: 312, for a chimney-type light modifier.

164	Miner"s safety type:
	This subclass is indented under subclass 159.  Subject matter having means to prevent a flame from igniting combustible gases which may surround the light unit. (1) Note. The means for preventing ignition is usually a fine screen. These devices are not sealed type units. SEE OR SEARCH THIS CLASS, SUBCLASS: 158, for sealed units, e.g., dust proof, water tight, etc.

165	With lock:
	This subclass is indented under subclass 164.  Subject matter having means to prevent unauthorized access to the light source.

166	Selective wavelength transmitting or light blocking means:
	This subclass is indented under subclass 159.  Subject matter having means to absorb a portion of the light ray energy and transmit the remainder or means to stop all light ray energy from being transmitted.

167	With separate movable selective elements:
	This subclass is indented under subclass 166.  Subject matter having a refractor or transparent housing closure (i.e., "lens") and wherein the selective wavelength transmitting or light blocking means is movable between the light source and the lens.

168	Plural:
	This subclass is indented under subclass 167.  Subject matter having more than one lens.

169	Plural lenses:
	This subclass is indented under subclass 166.  Subject matter having more than one refractor or transparent housing closure members through which light is transmitted.

170	Rotatable type:
	This subclass is indented under subclass 169.  Subject matter having means whereby a light unit body is revolved on a support. (1) Note. The subject matter of this subclass type includes plural lenses generally of different colors so that by rotating the unit a change in color will be visible to one looking at the unit. SEE OR SEARCH THIS CLASS, SUBCLASS: 168, for nonelectric lamps having plural lenses and separate selective wavelength transmitting or light blocking means movable between at least one of the lenses and the light source.

171	Tubular type:
	This subclass is indented under subclass 159.  Subject matter wherein a portion of the products of combustion is led back to the flame or in which the air, or a portion thereof, for combustion is preheated by the combustion. SEE OR SEARCH CLASS: 126,  Stoves and Furnaces,   subclass 79 for heating stoves that are provided with means for returning the gases or products of combustion from the smoke outlet to the combustion chamber of the stove. 431,  Combustion,   subclasses 104+ for a mantle-type burner in which the fuel is heated by the products of combustion and subclass 215 for a burner in which the exhaust products heat the burner fuel.

172	Base structure:
	This subclass is indented under subclass 171.  Subject matter wherein the lamp"s lower part is peculiarly structured. (1) Note. Generally the structure of this subclass type relates to the tubes leading to the burner. SEE OR SEARCH THIS CLASS, SUBCLASS: 181, for base structure, per se.

173	Dome structure:
	This subclass is indented under subclass 171.  Subject matter wherein the lamp"s upper part is peculiarly structured. (1) Note. Subject matter of this subclass generally relates to the hood or dome structure which connects with the upper end of the tubes and which allow the escape of the products of combustion. SEE OR SEARCH THIS CLASS, SUBCLASS: 182, for dome structure, per se.

174	Relatively movable modifier:
	This subclass is indented under subclass 171.  Subject matter wherein a globe is movable with respect to its support structure for access to the burner.

175	Compound motion:
	This subclass is indented under subclass 174.  Subject matter wherein the globe has one motion away from the support structure and another motion of rotation about a pivot.

176	Rectilinear motion:
	This subclass is indented under subclass 174.  Subject matter wherein the globe is moved in alternate directions in a straight line.

177	Pivoted motion:
	This subclass is indented under subclass 174.  Subject matter wherein the globe is rotatably reciprocated about a fixed axis.

178	Tube structure:
	This subclass is indented under subclass 171.  Subject matter wherein details of the tube construction is enumerated.

179	Mantle type:
	This subclass is indented under subclass 159.  Subject matter having a lace-like hood or envelope of thin, porous refractory material which, when positioned in a flame, incandesces. SEE OR SEARCH CLASS: 431,  Combustion,   subclasses 100+ for an incandescent mantle.

180	Chimney type:
	This subclass is indented under subclass 159.  Subject matter having means to encompass a light source and transmit light and has an opening on the top and bottom for a draft. SEE OR SEARCH THIS CLASS, SUBCLASS: 312, for chimney refraction, per se.

181	Base structure:
	This subclass is indented under subclass 159.  Subject matter wherein a light unit lower part is peculiarly structured. SEE OR SEARCH THIS CLASS, SUBCLASS: 172, for base structure of a tubular-type light unit.

182	Dome structure:
	This subclass is indented under subclass 159.  Subject matter wherein a light unit upper part is peculiarly structured.

183	Rechargeable electrical source of with external connections:
	This subclass is indented under subclass 157.  Subject matter wherein the energy source is an electric battery enclosed within a casing and having a light source energizeable by the battery and electric connectors supported by the casing to permit electrical energy to be passed from outside the casing and electrical means external or internal of the casing connected to the connectors and to the battery or to the light source or support therefor, whereby electric power supplied to the electrical means (a) directly, or indirectly through the light source support, energizes the light source, or (b) recharges the battery when the light source or light source support is electrically disconnected from the battery. (1) Note. The battery in this subclass is a rechargeable or a regular dry cell battery. (2) Note. The subcombination of a self-powered lamp which includes charging terminals to connect an external power source to the battery of self-powered lamp is placed here. (3) Note. Here also are self-powered lamps with integral charging means.

184	Having plural lamp bulbs or lamp sockets:
	This subclass is indented under subclass 157.  Subject matter wherein there are one or more casings which support within the casing or casings an electrical battery or batteries and there are plural electrical filament bulb light sources supported on the casing or casings, or there are plural light bulb supports supported on the casing or casings.

185	With a protective cage:
	This subclass is indented under subclass 184.  Subject matter which includes a guard held by a casing to protect the bulbs or bulb sockets from damage and which permits light from the light bulb, or light from a bulb when supported by the bulb support, to pass through. SEE OR SEARCH THIS CLASS, SUBCLASS: 186, for wire guards protecting a bulb or bulb socket when combined with a flashlight casing.

186	Dome, globe or wire guard or lamp bulb cover:
	This subclass is indented under subclass 157.  Subject matter wherein the energy source is an electric battery supported on or within the casing, the light source is an electric filament light source and the light source support is for an electric filament light bulb and there is (a) a light transmissive member surrounding the filament light source or light source support to permit light, emitted from the source or a source supported by the support, to be transmitted through the member in at least one hundred and eighty degrees of angle in more than one plane, or (b) a protective member covering the light bulb or the light bulb support which permits light from the light bulb or from a light bulb when supported by the light bulb support to pass through the protective member.

187	With movable focusing element:
	This subclass is indented under subclass 157.  Subject matter wherein there is at least one optical light modifier which receives light emitted by the light source and wherein the light source, the light source support or the optical modifier is adjustably mounted so that manual adjustment of the light source, light source support or the light modifier will cause a change in the light pattern formed by the light.

188	Movable lamp bulb or lamp bulb support:
	This subclass is indented under subclass 187.  Subject matter wherein the light or the light source support is movable.

189	Disposable lamp or flexible material casing:
	This subclass is indented under subclass 157.  Subject matter wherein the casing encloses a battery and also holds an electric light source or support therefor or wherein there is a support to hold a battery and an electric light source or support therefor, and wherein (a) the arrangement of the battery, light source and/or light source support is designed not to be reused, or (b) the casing or support is formed in part of a material which is deformable. (1) Note. The term "deformable" includes plastic, metal in the form of foil and cellulose material such as paper. Here, the casing or support may be extruded, cast or stamped or may be a wrapping, but the material of the casing or support is flexible. (2) Note. If, as recited, the battery is integral with a bulb or a bulb socket or light modifier and the unit is a "throw-away," the claim is classifiable in the subclass. If, as recited, only the battery pack unit, as opposed to a battery or individual batteries which can be replaced, is replaceable and separable from the light bulb or bulb socket and the battery pack unit supports the lamp bulb or lamp bulb socket, the claim is classifiable in subclasses 194+.

190	With support:
	This subclass is indented under subclass 157.  Subject matter having means to position, by itself or in combination with some other disclosed means, a self-powered lamp with respect to some reference point or reference structure. (1) Note. The "reference point" or "reference structure" of this subclass type need not be included in or part of the claimed combination. For example, a "reference point" of this subclass type may be on or included in structure fixedly positioned with respect to the earth"s surface, such as a table or floor, from which reference point the self-powered lamp is positioned at least in part by the means of this subclass type, as for example, a base.

191	With or comprising mounting means:
	This subclass is indented under subclass 190.  Subject matter combined with or having means to attach the support to the reference structure. (1) Note. For the definition of "reference structure" see the search this class, subclass note below. (2) Note. The reference structure may be an animate or inanimate support. The "means to attach the support" of this subclass includes handles, bails, clamps, hooks, hangers, straps, magnets and suction cups. SEE OR SEARCH THIS CLASS, SUBCLASS: 103+, for a lamp held by a piece of wearing apparel or a body support. 190, (1) Note for the definition of "reference structure" as used in this subclass (191). 249.01, for a support holding plural light sources. 269, for a light source or light support with a light modifier held on a rotatable or tiltable support. 285, for a light source or support with a light modifier held on an adjustable or repositional support. 382+, for a light support, per se, particularly subclass 382 for a strap support, subclasses 396+ for a clamp or hood support, subclass 398 for a magnetic support, and subclasses 399+ for a handle or bail support.

192	Generator power source:
	This subclass is indented under subclass 157.  Subject matter wherein the energy source is a means which converts mechanical energy into electrical energy.

193	Friction driven generator:
	This subclass is indented under subclass 192.  Subject matter wherein the mechanical energy is imparted to the generator by a moving member which frictionally engages a movable part of the generator.

194	Battery supported separable lamp assembly:
	This subclass is indented under subclass 157.  Subject matter comprising an electric voltaic energy source, and an electric light source or support therefor totally supported by the voltaic energy source.

195	Battery terminal sole support of lamp:
	This subclass is indented under subclass 194.  Subject matter wherein the voltaic energy source has electrical connectors attached to the voltaic energy source to deliver the energy of the source externally of the source to the light source or light source support and the light source or light source support is totally supported by one or more of the connectors.

196	Mating-halves type flashlight casing:
	This subclass is indented under subclass 157.  Subject matter wherein the casing is composed of two similar parts which together form the flashlight casing.

197	Lamp bulb or lamp support axis adjustable or angularly fixed relative to axis of flashlight casing:
	This subclass is indented under subclass 157.  Subject matter wherein an electric light source or support therefor and the casing each has an axis, and the axis of the light source or light source support is permanently at an angle to the axis of the casing, or the axis of the light source or light source support is adjustable relative to the axis of the casing. (1) Note. An arrangement of a light source or light source support having an axis and a casing having an axis parallel to the axis of the light source or light source support is excluded from this subclass. (2) Note. Subject matter of this subclass type includes, for example, "elbow flashlights." SEE OR SEARCH THIS CLASS, SUBCLASS: 191, for a flashlight casing or an end with a support for holding the casing or cap. 200+, for flashlights which have a casing having at least two major sides parallel to each other and the light source or light source support and battery are supported by the casing. 202, for cylindrical flashlights whose casing supports a lamp bulb or a lamp support and encloses a battery.

198	Flexibly or extensibly mounted lamp bulb or lamp support:
	This subclass is indented under subclass 197.  Subject matter wherein the light source or light source support is connected to the casing by a means which is movable to permit the light source or light source support to be moved to various locations consistent with the length of the means or by an electric cord of such length to permit the light source or light source support to be moved to various locations consistent with the length of the cord. (1) Note. The means of this subclass type may be, for example, telescopic, flexible, and sectional pivoted members.

199	Separate lamp housing or lamp support pivoted to flashlight casing:
	This subclass is indented under subclass 197.  Subject matter wherein the light source or light source support is mounted upon the casing so that the light source or light source support is turnable about a point.

200	Flat flashlight casing:
	This subclass is indented under subclass 157.  Subject matter wherein the casing encloses an electric battery and includes at least two planar surfaces parallel to each other and supports an electrical filament lamp bulb.

201	Lamp terminal directly contacts a battery terminal:
	This subclass is indented under subclass 200.  Subject matter wherein the lamp bulb includes an electric contact and the battery has an electrical contact and the contact of the bulb always physically touches the contact of the battery to pass an electrical current through the contacts from the battery to the filament.

202	Cylindrical flashlight casing:
	This subclass is indented under subclass 157.  Subject matter comprising casings for electrically self-powered lamp wherein the casing is an elongated hollow member having a generally circular cross-section.

203	Bulb or battery physically moved to join mating contacts of each other:
	This subclass is indented under subclass 202.  Subject matter having a battery of the primary type with electrical terminals and an electrical light source or support therefor having electrical terminals and a device to move a terminal of the light source or light source support into or away from the contact with a terminal of the battery.

204	Insulated casing with switch between fixed conductors:
	This subclass is indented under subclass 202.  Subject matter having a battery of the primary type and a casing which is a nonconductor of electricity and a first conductor supported by the casing and a second conductor separated electrically from the first conductor and also supported by the casing and an electrical current make and break device electrically connecting the first and second conductors to selectively pass current between the battery and an electric light source or support therefor.

205	With switch:
	This subclass is indented under subclass 202.  Subject matter having a primary battery with electrical terminals and an electric light source having terminals or an electric light source support having at least one electrical terminal contactable with one or more terminals of the light source and a manually operated electrical current make or break device electrically connecting or disconnecting one of the terminals of the battery with a terminal of the light source or light source support.

206	At end opposite bulb:
	This subclass is indented under subclass 205.  Subject matter wherein the cylinder has two ends and the electrical light source or the support therefor is located at one end of the cylinder and the switch is located at the other end of the cylinder.

207	Spare bulb carrier:
	This subclass is indented under subclass 157.  Subject matter comprising an attachment to the self-energized lamp to hold an extra electrical filament type (lamp bulb) light source, which attachment is supported on or within an electrical self-energized lamp or on a subcombination thereof. (1) Note. The spare electrical bulb may be supported on the end cap of the flashlight, on the spring, between an end cap and the battery or batteries, which forms part of the electrical circuit between the battery or batteries and the lamp bulb, on the reflector of a flashlight or on any member forming part of the flashlight.

208	Flashlight elements:
	This subclass is indented under subclass 157.  Subject matter wherein the subcombinations or elements of self-energized lamps include parts and arrangements of parts necessary to form a complete electric flashlight but not in themselves forming a complete flashlight and adjuncts to complete electric flashlights which permit a flashlight to function as a light source in a manner different from the normal use of a flashlight itself.

209	PLURAL NONELECTRIC LIGHT SOURCES:
	This subclass is indented under the class definition.  Subject matter wherein there are two or more spatially separate light sources and wherein at least two of the sources are comprised of light emitting means other than means which converts energy associated with an electric current into visible radiant energy and means to modify the light therefrom. SEE OR SEARCH THIS CLASS, SUBCLASS: 228+, for plural light sources, one of which may be nonelectric. 266, for a nonelectric light source (or support therefor) combined with a light modifier. SEE OR SEARCH CLASS: 431,  Combustion,   for nonelectric light sources, per se.

210	PLURAL CARBON ARC-TYPE LIGHT SOURCES:
	This subclass is indented under the class definition.  Subject matter wherein there are two or more spatially separate light sources, at least two of which include an electrode containing carbon which is consumed during the operation of the device and means to modify the light therefrom. SEE OR SEARCH THIS CLASS, SUBCLASS: 209+, for a carbon arc-type light source and means to modify the light therefrom. 228, for plural light source, one of which may be of the carbon arc type.

211	MULTIPLE FILAMENT LIGHT UNIT:
	This subclass is indented under the class definition.  Subject matter comprising combinations of two or more selectively energizeable filament type light sources in a common envelope and a modifier. SEE OR SEARCH THIS CLASS, SUBCLASS: 227+, for two or more selectively energizeable filament type light sources, each in its own envelope.

212	With electrical switching means:
	This subclass is indented under subclass 211.  Subject matter provided with means to actuate the various filaments, either singularly or simultaneously.

213	Relatively movable light source or modifier:
	This subclass is indented under subclass 211.  Subject matter wherein means are provided for permitting the modifier and light source to be moved relative to each other to vary the distribution of light.

214	With mask or screen for at least one filament:
	This subclass is indented under subclass 211.  Subject matter provided with means to absorb, or randomly scatter some or all of the light from at least one of the filaments. (1) Note. Subject matter of this subclass type includes, for example, translucent screens. SEE OR SEARCH THIS CLASS, SUBCLASS: 215, for corrugated, faceted or fluted reflectors or lenses combined with multiple filament light sources.

215	With corrugated, faceted or fluted reflector and/or lens:
	This subclass is indented under subclass 211.  Devices wherein the light modifier has a complex modifying surface comprised of a plurality of angularly related planes or plurality of surfaces of revolution.

216	CURVILINEAR LIGHT SOURCE:
	This subclass is indented under the class definition.  Subject matter comprising a source of light which, as recited in the claims, is virtually a curved line. (1) Note. Included in the subject matter of this subclass is, for example, a light source comprised of a continuous fluorescent surface of revolution generated about a nonlinear axis since the rays of light emitted by such a light source, if extended inwardly, all meet on the nonlinear axis which thus constitutes the virtual curved line light source of this subclass type. (2) Note. The light source of this subclass type are either recited as being curvilinear or as in combination with means whose recited structure and function necessarily recognize the curvilinearity of the light source. Thus, a filament type light source is not necessarily classifiable here even though the filament may be disclosed as being curved.

217.01	ELONGATED SOURCE LIGHT UNIT OR SUPPORT:
	This subclass is indented under the class definition.  Subject matter comprising (a) a light source (see Glossary, "Light Source") which is virtually a straight line, at least in part, or having a dimension substantially greater in one direction than any in a plane transverse to said direction, and a light modifier (see Glossary, "Light Modifier") structurally related to the light source so as to modify light therefrom, or (b) a support for such a light source with or without a light modifier. (1) Note. Light sources of the type provided for in this subclass and the subclasses indented hereunder are usually recited as "tubular," "elongated," "linear," "cylindrical," and "extended." In all other cases, the elongated nature of the light source must be implied by the claims themselves or necessarily imputed from the claimed disclosure in order to render the claimed combination structurally complete and operative for the functions referred to in the claim. For example, "means to support a pair of fluorescent lamps" is sufficient basis for placement in this subclass or the subclasses indented hereunder even though fluorescent lamps are often elongated since the word "fluorescent" itself does not imply length. On the other hand, "means to support a pair of lamps parallel to each other" is sufficient basis for placement in this subclass or the subclasses indented hereunder since the word "parallel" implies that the lamps have length. SEE OR SEARCH THIS CLASS, SUBCLASS: 260, for combination of a fluorescent light source or support therefor and a modifier wherein the source is not an elongated type.

217.02	With light modifier:
	This subclass is indented under subclass 217.01.  Subject matter including means to alter the distribution or composition of light emitted from the illuminating means by reflecting, refracting, or partially or completely absorbing the light. SEE OR SEARCH THIS CLASS, SUBCLASS: 293, for a selected wavelength modifier. 317, through 361, for a light modifier, in general. SEE OR SEARCH CLASS: 296,  Land Vehicles: Bodies and Tops,   subclass 97.2 and 97.3 for a glare screen with specific structure or properties for diffusing or reflecting light. 359,  Optical: Systems and Elements,   subclasses 601 through 614for a glare or unwanted light reduction, in general; and subclasses 885-892 for an absorption filter, in general.

217.03	Louvered or grid-type modifier:
	This subclass is indented under subclass 217.02.  Subject matter wherein the modifier includes at least two spaced adjacent modifying means, each having at least two plane or curved surfaces of the type generated by a straight or curved line (the "generatrix"); the means being so arranged relative to each other and to the light source that (a) no two of the surfaces are generated by an extension of the same generatrix, (b) one of the surfaces of one means faces one of the surfaces of the adjacent means, (c) one of the surfaces of each means is exposed to light from the light source, and (d) light from the source is able to pass both surfaces of each means and at least one of the surfaces in a direction parallel or tangent to its generatrix. (1) Note. A "grid" for purposes of classification in this subclass consists of at least two intersecting pairs of louvers. (2) Note. The two spaced adjacent means of this subclass may be part of the same element, as for example, a spiral louver. SEE OR SEARCH THIS CLASS, SUBCLASS: 290, through 292, for a louvered or grid-type modifier with light source (or support therefor) and modifier. 325, for angularly adjustable louvered or grid-type modifiers, per se. 330, for panel-type refractor modifiers which may include louvers or grids. 342, for louvered or grid-type reflectors, per se. 354, for louvered or grid-type translucent or opaque modifiers, per se.

217.04	Including curved modifying surface:
	This subclass is indented under subclass 217.03.  Subject matter wherein at least one of the surfaces exposed to light from the light source is nonplanar.

217.05	Including reflector:
	This subclass is indented under subclass 217.02.  Subject matter wherein a surface is included that redirects incident light back into the medium from which it came. SEE OR SEARCH THIS CLASS, SUBCLASS: 296.01, through 296.1, for reflector with light source (or support therefor) and modifier. 341, for reflectors, per se, for illuminating purposes.

217.06	Parabolic:
	This subclass is indented under subclass 217.05.  Subject matter wherein the reflecting surface conforms at least in part to a surface generated by the revolution of a parabola about its axis. SEE OR SEARCH THIS CLASS, SUBCLASS: 296.08, for parabolic reflector in a light source (or support therefor) and modifier.

217.07	Concave:
	This subclass is indented under subclass 217.05.  Subject matter wherein a surface is curving in or hollowed inward. SEE OR SEARCH THIS CLASS, SUBCLASS: 296.07, for concave reflector in a light source (or support therefor) and modifier.

217.08	Fluorescent:
	This subclass is indented under subclass 217.02.  Subject matter wherein the source of light is a solid or liquid material which emits visible light when irradiated by invisible radiation. SEE OR SEARCH THIS CLASS, SUBCLASS: 260, for fluorescent-type light source or (support therefor) and modifier.

217.09	Plural:
	This subclass is indented under subclass 217.08.  Subject matter wherein more than one fluorescent light source is used.

217.1	Housing:
	This subclass is indented under subclass 217.01.  Subject matter comprising means to entirely enclose a light source except for opening for the egress of light and for which means no other light modifying means is recited. SEE OR SEARCH THIS CLASS, SUBCLASS: 362, for housing, per se.

217.11	Frame:
	This subclass is indented under subclass 217.1.  Subject matter wherein the illumination device is supported by skeletal-type beams forming an open frame or support.

217.12	With or comprising mounting means:
	This subclass is indented under subclass 217.1.  Subject matter combined with or having means to attach the housing to support structure. (1) Note. The reference structure may be an animate or inanimate support. The "means to attach the support" of this subclass includes handles, bails, clamps, hooks, hangers, straps, magnets, and suction cups. SEE OR SEARCH THIS CLASS, SUBCLASS: 103, through 108, for a lamp held by a piece of wearing apparel or a body support. 190, for support of self-powered lamps. 249.01, through 249.19, for a support holding plural light sources. 269, for a light source or light support with a light modifier held on a rotatable or tiltable support. 285, for a light source or support with a light modifier held on an adjustable or repositional support. 382, through 456, for a light support, per se, particularly subclass 382 for a strap support. 396, for a clamp or hood support. 398, for a magnetic support. 399, and 400, for a handle or bail support.

217.13	With or comprising connecting means:
	This subclass is indented under subclass 217.1.  Subject matter combined with or having means to put or bring together parts of the housing.

217.14	Support:
	This subclass is indented under subclass 217.01.  Subject matter comprising structural means to position, by itself or in combination with some other disclosed means, a light source or modifier with respect to some reference point or reference structure. (1) Note. The "reference structure" of this subclass may be included in the "structural means" of this subclass or it may not. The "reference structure" or "reference point" need not be on an element recited in the claims for structure of this subclass type to be classifiable in this subclass or the subclasses hereunder. SEE OR SEARCH THIS CLASS, SUBCLASS: 382, for supports, per se.

217.15	Frame:
	This subclass is indented under subclass 217.14.  Subject matter wherein the illumination device is supported by skeletal-type beams forming an open frame or support.

217.16	With or comprising mounting means:
	This subclass is indented under subclass 217.14.  Subject matter combined with or having means to attach the support to a reference structure. (1) Note. The reference structure may be an animate or inanimate support. The "means to attach the support" of this subclass includes handles, bails, clamps, hooks, hangers, straps, magnets, and suction cups. SEE OR SEARCH THIS CLASS, SUBCLASS: 103, through 108, for a lamp held by a piece of wearing apparel or a body support. 190, for support of self-powered lamps. 249.01, through 249.19, for a support holding plural light sources. 269, for a light source or light support with a light modifier held on a rotatable or tiltable support. 285, for a light source or support with a light modifier held on an adjustable or repositional support. 382, through 456, for a light support, per se, particularly subclass 382 for a strap support. 396, for a clamp or hood support. 398, for a magnetic support. 399, and 400, for a handle or bail support.

217.17	With or comprising connecting means:
	This subclass is indented under subclass 217.14.  Subject matter combined with or having means to bring together parts of the support.

218	With ventilating or cooling means:
	This subclass is indented under subclass 217.01.  Subject matter having means to remove heat generated by the light from some part of the claimed combination. SEE OR SEARCH THIS CLASS, SUBCLASS: 96, for fluent material means for conveying thermal energy generated by means other than the light source from one point to another.

219	With means to position plural light sources colinearly:
	This subclass is indented under subclass 217.01.  Subject matter having means to structurally interconnect two or more elongated source light units or supports such that the long dimension of the respective light sources extend along the same line.

220	Repositionable:
	This subclass is indented under subclass 217.01.  Subject matter having at least one supporting means for an elongated light source which supporting means is so structurally related to some other part of the claimed combination as to permit the support to be moved from one position to another relative to the other part of the combination. (1) Note. Included in the subject matter of this subclass are light source supports comprising two or more spatially separated means for supporting the same light source, one of which is movable relative to the other to accommodate light sources of different lengths.

221	With means to accommodate additional circuit element:
	This subclass is indented under subclass 217.01.  Subject matter having means structurally relating (as by housing or supporting) a circuit element other than the light source or its terminal connectors to the light source, its support or the light modifier. (1) Note. The circuit elements of this subclass type do not include mere electrical connection means such as wiring, terminals, or connectors. Switches, however, are included.

222	With or including transparent or translucent member:
	This subclass is indented under subclass 221.  Subject matter in which the claimed combination includes an element made in whole or in part of a light pervious material. (1) Note. The element may be a light modifier or, for example, a part of the light housing.

223	With or including transparent or translucent member:
	This subclass is indented under subclass 217.01.  Subject matter in which the claimed combination includes an element made in whole or in part of a light pervious material. (1) Note. The element may be a light modifier or, for example, a part of the light housing.

224	Plural members:
	This subclass is indented under subclass 223.  Subject matter having two or more elements made in whole or in part of a light pervious material.

225	Plural sources or supports therefor:
	This subclass is indented under subclass 217.01.  Subject matter having two or more elongated light sources or supports for two or more elongated light sources.

227	PLURAL LIGHT SOURCES:
	This subclass is indented under the class definition.  Subject matter including more than one source of light (see Glossary, "Light Source"). (1) Note. For inclusion here and in the indented subclasses, the sources must be claimed. SEE OR SEARCH THIS CLASS, SUBCLASS: 33, for plural sources arranged to provide a condensed and shadowless illumination for a work area. 209, for plural nonelectric light sources. 210, for plural carbon arc-type light sources. 211, for a multiple filament source in a light unit. 217.01, through 217.17, for plural elongated light sources in a light unit. SEE OR SEARCH CLASS: 399,  Electrophotography,   for illumination systems including light sources used in electrophotographic devices, specifically subclasses 177+ for exposure.

228	Diverse light generators:
	This subclass is indented under subclass 227.  Subject matter wherein at least one of the light sources consists of a light emitting heated or ionized solid or gas of one type and at least one other light source consists of a light emitting heated or ionized solid or gas of another type. (1) Note. Examples of types of diverse light generators provided for in this subclass and the subclasses indented hereunder include any two of the following: electrically (resistively) heated carbon filament, electrically (resistively) heated tungsten filament, electrically ionized neon, hot gaseous products of combustion (flame), partially ionized (irradiated) phosphor coating (fluorescent tube).

229	Gas and electric:
	This subclass is indented under subclass 228.  Subject matter wherein at least one light source is the flame of a burning gas and at least one other is an electrical generator of visible radiation. SEE OR SEARCH THIS CLASS, SUBCLASS: 457, for fittings used in combined gas and electric fixtures.

230	Particular wavelength:
	This subclass is indented under subclass 227.  Subject matter wherein at least one of the light sources emits light of specified wavelength or spectral distribution or wherein at least one modifier affects light of at least one wavelength differently from light of at least one other wavelength.

231	Different wavelengths:
	This subclass is indented under subclass 230.  Subject matter having at least one source of light emitting light having a spectral distribution different from the light emitted by at least one other source, or having at least two modifiers, each of which affects light of one selected wavelength differently from light of another wavelength, the selected wavelengths of the two modifiers being different. SEE OR SEARCH THIS CLASS, SUBCLASS: 1+, for subject matter for producing particular wavelengths for the purpose of simulating daylight.

232	Source and modifier mounted for relative movement:
	This subclass is indented under subclass 227.  Subject matter wherein means are provided for moving, or adjusting the position of a source relative to its modifier. SEE OR SEARCH THIS CLASS, SUBCLASS: 277+, for adjustable or repositionable modifier not claimed in combination with plural sources. 285+, for an adjustable light source. 319+, for an adjustable or positionable light modifier.

233	Remote adjustment or positioning means:
	This subclass is indented under subclass 227.  Subject matter wherein means are provided which permit at least one of the light sources or its modifier to be moved by or under the control of a human operator situated beyond reach of the light source or modifier.

234	Combined:
	This subclass is indented under subclass 227.  Subject matter in combination with features other than light modifying elements, light support structure, or electrical connection means, and not provided for in preceding subclasses. SEE OR SEARCH THIS CLASS, SUBCLASS: 253, for combined subject matter wherein plural light sources are not claimed. SEE OR SEARCH CLASS: 206,  Special Receptacle or Package,   subclasses 216+ for the combination of a lamp assemblage, or package or a lamp with disparate means. Note, "assemblage" and "package" concepts are stated in Class 206.

235	With modifier:
	This subclass is indented under subclass 227.  Subject matter including means to alter the distribution or composition of incident light from at least one light source, by changing its direction or by the absorption of some or all of its energy. SEE OR SEARCH THIS CLASS, SUBCLASS: 19, for light polarizers. 230, for similar subject matter wherein the particular wavelength is claimed. 257, for a light modifier combined with a light source (or support therefor). 317, for a light modifier, per se.

236	Distinct light units:
	This subclass is indented under subclass 235.  Subject matter wherein each of at least two light sources is associated with a modifier which does not receive light directly from the other source or sources. SEE OR SEARCH THIS CLASS, SUBCLASS: 257+, for a light source or support therefor and modifier.

237	Substantially identical modifiers:
	This subclass is indented under subclass 236.  Subject matter wherein the light modifiers in the light units are substantially duplicates or mirror images of one another.

238	Positioning means for plural units:
	This subclass is indented under subclass 237.  Subject matter including means to spatially locate plural units with respect to each other or with respect to a common support. (1) Note. The positioning means frequently includes a conduit for the electrical supply.

239	Relative adjustment means:
	This subclass is indented under subclass 238.  Subject matter wherein the positioning means also constitutes or provides means enabling the plural units to be adjusted relative to each other. SEE OR SEARCH THIS CLASS, SUBCLASS: 233, for remote adjustment or positioning means.

240	Units have common housing:
	This subclass is indented under subclass 237.  Subject matter including means to enclose two or more light units. (1) Note. A housing provides a window for the ingress and egress of light, which may have a transparent or translucent cover, and often has ventilation openings, but otherwise totally encloses the light units.

241	Reflector type modifiers:
	This subclass is indented under subclass 237.  Subject matter wherein the modifiers each have a surface which redirects the light back into the medium from which it came.

242	Diverse modifiers:
	This subclass is indented under subclass 236.  Subject matter wherein a modifier associated with a light source is of a different type than the modifier associated with another light source. (1) Note. Examples of different types of light modifiers are light reflectors, light concentrating refractors, light diffusing refractors, light filters, and light blocking shields.

243	Including reflector:
	This subclass is indented under subclass 242.  Subject matter wherein one of the light modifiers has a surface which redirects the light back into the medium from which it came.

244	Refractor type modifier:
	This subclass is indented under subclass 236.  Subject matter wherein a modifier includes means having a pair of surfaces which causes light passing through to bend, and thus emerge from the means at an angle different from which it entered. SEE OR SEARCH THIS CLASS, SUBCLASS: 246, for refractors which scatter light. 326, for refractors, per se.

245	With reflector:
	This subclass is indented under subclass 244.  Subject matter including means which redirects light back into the medium from which it came in addition to a refraction type modifier. (1) Note. The reflector may be part of the same light unit having a refractor, or may be part of a distinct light unit. SEE OR SEARCH THIS CLASS, SUBCLASS: 327, for a light modifier, per se, comprising a refractor with a reflector.

246	Diffusing type:
	This subclass is indented under subclass 244.  Subject matter wherein the refractor randomly scatters the emergent light.

247	Reflector type modifier:
	This subclass is indented under subclass 236.  Subject matter wherein a modifier includes means to redirect light back into the medium from which it came. SEE OR SEARCH THIS CLASS, SUBCLASS: 341, for a reflector modifier, per se.

248	Shielding type modifier:
	This subclass is indented under subclass 236.  Subject matter including means to block or absorb light rays from a source. (1) Note. A "shade" which reflects light is a reflector. SEE OR SEARCH THIS CLASS, SUBCLASS: 351, for shielding type modifiers, per se.

249.01	With support:
	This subclass is indented under subclass 227.  Subject matter including means to spatially position a light source relative to some reference point or structure including another light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 382, through 456, for supports for plural light sources, per se.

249.02	Having light-emitting diode:
	This subclass is indented under subclass 249.01.  Subject matter comprising a two-electrode semiconductor device emitting incoherent optical radiation when biased by a voltage in a forward direction. SEE OR SEARCH THIS CLASS, SUBCLASS: 311.02, for a light-emitting diode in a translucent or transparent modifier. 545, for plural light-emitting diodes in a common housing in a vehicle. 555, for light-emitting diode in a light fiber, rod, or pipe. 612, for light-emitting diode in an edge lighted panel. 800, for a light-emitting diode in a cross-reference art collection. SEE OR SEARCH CLASS: 257,  Active Solid-State Devices (e.g., Transistors, Solid-State Diodes),   subclass 98 for an incoherent light-emitter structure with a reflector, opaque mask, or optical element.

249.03	Adjustable:
	This subclass is indented under subclass 249.02.  Subject matter wherein the support includes means to vary the position of at least one of the light sources relative to the reference point or structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 233, for remote adjustment means. 249.07, for adjustable means with support without light-emitting diode.

249.04	Flexible:
	This subclass is indented under subclass 249.03.  Subject matter wherein the support means is deformable. SEE OR SEARCH THIS CLASS, SUBCLASS: 249.09, for flexible means that do not include light-emitting diode.

249.05	With switch:
	This subclass is indented under subclass 249.02.  Subject matter including electrical means to control the electrical current input of a light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 249.11, for support with switch without light-emitting diode. SEE OR SEARCH CLASS: 200,  Electricity: Circuit Makers and Breakers,   for switch structure, per se.

249.06	Particular arrangement (e.g., flower, star, light string, etc.):
	This subclass is indented under subclass 249.02.  Subject matter wherein the light sources are supported in a specific spatial relationship. (1) Note. The arrangement of the sources is often designed to suggest some other object, such as a star or flag. SEE OR SEARCH THIS CLASS, SUBCLASS: 249.13, for support with particular arrangement without light-emitting diode. 392, for an imitation candle support, per se. 416, for a harp or font.

249.07	Adjustable:
	This subclass is indented under subclass 249.01.  Subject matter wherein the support includes means to permit variation of the position of at least one of the light sources relative to the reference point or structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 233, for remote adjustment means. 249.04, for adjustable means with support with light-emitting diode.

249.08	Flexible:
	This subclass is indented under subclass 249.07.  Subject matter wherein the support means is deformable. SEE OR SEARCH THIS CLASS, SUBCLASS: 249.05, for flexible means that include light-emitting diode.

249.09	Having plural diverse motions (e.g., extensible and collapsible, etc.):
	This subclass is indented under subclass 249.07.  Subject matter wherein the adjustable light support has structure to permit at least two diverse motions, such as rotation about two or more spatially separate axes, rotation about an axis and linear displacement, or linear displacement in two or more directions. SEE OR SEARCH THIS CLASS, SUBCLASS: 419, for having plural diverse motions in an adjustable light support in a support, per se.

249.1	Pivoted lamp or lamp support:
	This subclass is indented under subclass 249.07.  Subject matter wherein the light support includes structure to permit rotation of the light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 427, for pivoted lamp or lamp support in an adjustable light support, per se.

249.11	With mounting means:
	This subclass is indented under subclass 249.07.  Subject matter including means for attaching an adjustable support with respect to a reference structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 430, for mounting means in an adjustable light support, per se.

249.12	With switch:
	This subclass is indented under subclass 249.01.  Subject matter including electrical means to control the electrical current input of a light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 249.05, for support with switch with light-emitting diode. SEE OR SEARCH CLASS: 200,  Electricity: Circuit Makers and Breakers,   for switch structure, per se.

249.13	Plural:
	This subclass is indented under subclass 249.12.  Subject matter wherein more than one switch is used.

249.14	Particular arrangement (e.g., flower, star, light string, etc.):
	This subclass is indented under subclass 249.01.  Subject matter wherein the light sources are supported in a specific spatial relationship. (1) Note. The arrangement of the sources is often designed to suggest some other object, such as a star or flag. SEE OR SEARCH THIS CLASS, SUBCLASS: 249.06, for support with particular arrangement with light-emitting diode. 392, for an imitation candle support, per se. 416, for a harp or font.

249.15	Net-type arrangement:
	This subclass is indented under subclass 249.14.  Subject matter wherein the particular arrangement is a meshed structure.

249.16	Ornamental or decorative:
	This subclass is indented under subclass 249.14.  Subject matter including means to give a pleasing effect to the eye. SEE OR SEARCH THIS CLASS, SUBCLASS: 311.13, for ornamental or decorative in translucent or transparent modifier. 565, for ornamental or decorative-type structure in light fiber, rod, or pipe. 806, for ornamental or decorative-type structure placed in a cross-reference art collection.

249.17	With star or cross:
	This subclass is indented under subclass 249.16.  Subject matter comprising a light source with a plurality of elongated, shaped elements having a central ornament. SEE OR SEARCH THIS CLASS, SUBCLASS: 121, for a light source having a star or cross, per se. 566, for star or cross in ornamental or decorative-type structure in light fiber, rod, or pipe. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   appropriate subclasses for movable display exhibitors or those with the illusion of motion, and with illuminating means. 428,  Stock Material or Miscellaneous Articles,   subclass 3 for a religious artifact, in general (e.g., cruciform); and subclass 11 for a ball, bell, or star-shaped special occasion ornament, in general.

249.18	Tree- or plant-like (e.g., tree simulation, etc.):
	This subclass is indented under subclass 249.16.  Subject matter comprising an ornamental structure of transparent or translucent material formed as an artificial perennial woody plant, flower, or other similar artistic object. SEE OR SEARCH THIS CLASS, SUBCLASS: 122, and 123, for a plant-like ornament or wreath. 567, for tree or plant like in ornamental or decorative-type structure in a light fiber, rod, or pipe. SEE OR SEARCH CLASS: 428,  Stock Material or Miscellaneous Articles,   subclasses 18 through 20for a three-dimensional imitation tree and subclasses 24-27 for an imitation flower or flower petal.

249.19	Christmas tree:
	This subclass is indented under subclass 249.18.  Subject matter wherein the ornamental structure is an artificial perennial plant adapted for use as a Christmas tree. SEE OR SEARCH THIS CLASS, SUBCLASS: 567, for Christmas tree in ornamental or decorative-type structure in a light fiber, rod, or pipe.

253	COMBINED:
	This subclass is indented under the class definition.  Subject matter comprising combinations not elsewhere provided for of basic subject matter of the class, including subcombinations thereof, with additional means whose proximate function in the combination does not contribute to the efficacy (i.e., intended proximate function) of the class type subject matter. (1) Note. This subclass constitutes the residual locus for the combination of illuminating means with the object being illuminated. For example, the combinations of a light source and a modifier bearing locomotive identification numbers are classified here since, even though the modifier is class type subject matter, the function of the indicia is, primarily, to express information about the locomotive and only secondarily to modify the light from the source by altering its distribution. Mere combinations, however, of light sources and colored lenses, for example, to be used as signaling means are not classified here since such combinations only constitute basic subject matter of the class. Also, combinations of illuminating means and signalling means which conveys information about the illuminating means are not classified here since the proximate function for the signaling means (i.e., to convey information) contributes to the efficacy of the illuminating means. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclasses 204+ for illuminated license plates, various subclasses under 427+ and 446+ for illuminated display devices, subclass 540 for illuminated dummies, subclasses 541+ for illuminated signs, particularly subclass 556 for vehicle light, and subclass 557 for streetlights with signs.

254	LIGHT SOURCE SUBSTITUTION:
	This subclass is indented under the class definition.  Subject matter having at least two light supports which are movable with respect to an energy source or one light bulb with plural energy source contacts which is movable with respect to an energy source. (1) Note. The light support or light bulb is moved because one or the other has failed. SEE OR SEARCH THIS CLASS, SUBCLASS: 20, for a light source substitution done automatically. SEE OR SEARCH CLASS: 313,  Electric Lamp and Discharge Devices,   subclass 236 for electric lamps, per se, which are provided with a spare electrode to replace a defective electrode; subclass 237 for electric lamps, per se, which are provided with means to replace a defective electrode or which are readily demountable so as to be easily repaired; and subclasses 272 and 316 for plural filament incandescent lamps. 315,  Electric Lamp and Discharge Devices: Systems,   subclasses 87 and 88 and indented subclasses for electric lamp and electric space discharge device systems provided with means to substitute another lamp or electric space discharge device for the operating lamp or discharge device if the operating lamp or discharge device fails to operate properly. Class 362 provides for such subject matter when the protector, support, or light distributor is claimed. 340,  Communications: Electrical,   subclasses 500+ for means automatically responsive to a condition and search class for other classes with related art.

255	MODIFIER MOUNTABLE ON LIGHT SOURCE ENVELOPE:
	This subclass is indented under the class definition.  Subject matter consisting of a light modifier having or combined with means cooperable with a light source envelope base (see Glossary, "Light Source") to fixedly position the modifier relative thereto. (1) Note. The cooperable means may, for example, grip or press against the envelope or press the modifier against the envelope with sufficient force that the friction between the contacting surfaces prevent one surface from moving relative to the other under normal operating conditions.

256	With additional modifier:
	This subclass is indented under subclass 255.  Subject matter combined with one or more light modifiers not mounted on the light source envelope.

257	LIGHT SOURCE (OR SUPPORT THEREFOR) AND MODIFIER:
	This subclass is indented under the class definition.  Subject matter comprised of a light source (see Glossary, "Light Source") or support therefor and a modifier (see Glossary, "Light Modifier") structurally related to the light source so as to modify light therefrom. (1) Note. Nominal recitations of a light unit (e.g., "light unit," "headlight," "lamp") generally imply only a source of light and are insufficient basis for placement in this subclass and the subclasses indented hereunder unless a light source and a light modifier must be imputed from the claimed disclosure to render the claimed combination structurally complete and operative for the functions referred to in the claim. (2) Note. Light sources having light modifying envelopes are not classifiable, per se, in this class (362). (For the loci of such subject matter, see the search class notes below). However, combinations of such light sources with additional modifying means are classifiable in this subclass and the subclasses indented hereunder. SEE OR SEARCH THIS CLASS, SUBCLASS: 317+, for combinations of a modifier and a light source which may be spatially related but are not related by the structure of the claimed combination. SEE OR SEARCH CLASS: 313,  Electric Lamp and Discharge Devices,   subclasses 110+ for light sources having light modifying envelopes, per se. 399,  Electrophotography,   for illumination systems including light sources used in electrophotographic devices, specifically subclasses 177+ for exposure.

258	With extensible electric cord storage member:
	This subclass is indented under subclass 257.  Subject matter which includes an electric light source lamp or support therefor; a flexible extensible electric cord connected to the light source or light source support to deliver electric energy to the lamp and a cord storage device to hold the cord when not in use or to retain the excess portion of cord that is not needed at the moment; the cord being of such length as to permit the light source to be used as a portable light at varying distances from an electrical power source up to the limit of the length of the cord. (1) Note. The line between Class 191, Electricity: Transmission to Vehicles, Class 362, Illumination, and Class 242, Winding, Tensioning, or Guiding is as follows: A claim including an in name only lamp combined with a flexible extension cord to deliver electrical energy to the lamp and a cord storage device to store the cord is in Class 191, subclasses 12+. Class 362 will take a claim to illumination structure beyond a nominal recitation of a lamp, or light unit. Class 242 which is generic to winding and reeling of indefinite length material will not take a claim restricted to use with electrical conductors, which transmit electrical energy.

259	Laser type:
	This subclass is indented under subclass 257.  Subject matter wherein the light source is a molecular or atomic oscillator having an optical resonator which produces a narrow, intense beam of coherent, visible light. SEE OR SEARCH CLASS: 372,  Coherent Light Generators,   appropriate subclasses for laser type light sources, per se.

260	Fluorescent type:
	This subclass is indented under subclass 257.  Subject matter wherein the source of light is a solid or liquid material which emits visible light when irradiated by invisible radiation. SEE OR SEARCH THIS CLASS, SUBCLASS: 84, for a luminescent material combined with a source (or support therefor) of visible light. 217.08, for an illuminating device having an elongated fluorescent-type light source or having supports for such a light source. 263+, for light sources comprised of a gas or vapor which emits visible light when ionized by invisible radiant energy. SEE OR SEARCH CLASS: 313,  Electric Lamp and Discharge Devices,   particularly subclasses 483+ for fluorescent light sources, per se.

261	Carbon arc type:
	This subclass is indented under subclass 257.  Subject matter wherein the light source has an electrode containing carbon which is consumed during the operation of the device. SEE OR SEARCH CLASS: 314,  Electric Lamp and Discharge Devices: Consumable Electrodes,   appropriate subclasses for consumable electrode and the electric systems therefor. Also, see notes to other classes that utilize consumable electrodes.

262	With electrode feed means:
	This subclass is indented under subclass 261.  Subject matter having means to feed the electrode by gravity or positive means to move the electrode.

263	Ionized gas or vapor light source:
	This subclass is indented under subclass 257.  Subject matter wherein the light source consists of a gas or vapor containing ionized or partially ionized molecules or atoms which, in changing their ionization states from nonionized to ionized or vice versa or from one ionization level to another, emit visible radiant energy. (1) Note. The subject matter of this subclass and the subclasses indented hereunder includes, for example, gas or vapor discharge-type light sources and "glow" tubes which are virtually point sources of light. SEE OR SEARCH THIS CLASS, SUBCLASS: 216, for an ionized gas or vapor light source which is or includes a virtually curved line segment. 217.08, for an ionized gas or vapor light source which is or includes a virtually straight line segment. 260, for a fluorescent light source which emits visible light in response to incident invisible radiation emitted from an ionized gas or vapor discharge.

264	Including cooling means:
	This subclass is indented under subclass 263.  Subject matter having means for raising or lowering the temperature of the light source, light source support or light modifier.

265	Including circuit arrangement:
	This subclass is indented under subclass 263.  Subject matter having operatively associated therewith an inductive, capacitive or resistive circuit element.

266	Nonelectric type:
	This subclass is indented under subclass 257.  Subject matter wherein the light is generated by means other than means which converts energy associated with an electric current into visible radiant energy. SEE OR SEARCH THIS CLASS, SUBCLASS: 312+, for a nonelectric light source having a light pervious chimney. 382+, for supports for or with nonelectric light sources, particularly subclass 409 for ceiling-suspended supports and subclass 415 for standard-type supports.

267	With sealing means or artificial atmosphere:
	This subclass is indented under subclass 257.  Subject matter having a means (e.g., gasket) filling the space between two adjacent elements to prevent matter on one side of the elements from passing between them to the other side or having a gas other than air in contact, at least in part, with the source, support therefor, or modifier. (1) Note. Mere recitation of a "sealed" light source (or support therefor) and modifier (e.g., "sealed-beam head lamp") is insufficient basis for classification in this subclass if the sealing means itself is not recited. SEE OR SEARCH THIS CLASS, SUBCLASS: 306, for resilient means to force a source or modifier element into engagement with another adjacent element without a sealing means between the two elements. 310, for housing means for a light source or light source support and modifier without a sealing means between two adjacent parts.

268	Plural serial lens elements or components:
	This subclass is indented under subclass 257.  Subject matter including a plurality of lens elements or lens components for concentrating or spreading a light beam. (1) Note. The term "component" as applied to a lens designates either a single transparent mass of refractive material having two opposed refracting surfaces or a grouped plurality of such masses arranged in series along the optical axis of the lens with their adjacent refracting surfaces either in full over all contact or in spaced parallel relation with the spacing being of such small magnitude that it does not enter into the lens computations; the two refracting surfaces of the single mass and the two axially extreme refracting surfaces of the plurality of masses having at least a portion thereof axially air spaced from all other adjacent refracting surfaces that may be present in the lens. The axial dimension of the air spacing between either the opposed surfaces of the single mass or the axially extreme surfaces of the grouped plurality of masses and the other adjacent refracting surfaces that may be present in the lens must be of sufficient magnitude to enter into the lens computations in order to limit the axial extent of the lens component. (2) Note. The term "element" as applied to a lens designates any single transparent mass of refractive material having two opposed refracting surfaces, which surfaces are disposed transversely of the optical axis of the lens and spaced there along; i.e., any one of the masses in the above component definition regardless of its spacing from adjacent refracting surfaces that may be present in the lens. SEE OR SEARCH CLASS: 359,  Optical: Systems and Elements,   subclasses 642+ for lenses, per se, and the appropriate subclasses.

269	Tiltable or rotatable as a unit:
	This subclass is indented under subclass 257.  Subject matter wherein the light source (or support therefor) and modifier are structurally related by a common support having means to permit the light source (or support therefor) and modifier to assume two different positions about an axis without moving with respect to each other. (1) Note. The recitation of a "sealed-beam headlight" is considered a nominal recitation of a light source and the combination of a "sealed beam headlight" and a tiltable or rotatable supporting means is therefore not classified in this subclass or the subclasses indented hereunder if no light modifier is recited in the combination. Such combinations are classified elsewhere and cross-referenced to this subclass or the subclasses indented hereunder. (2) Note. Light units which are held in one position by resilient means are not classifiable in this subclass or the subclasses indented hereunder merely because an outside force acting against the resilient means can rotate or tilt the unit temporarily to a second position. The second position is not considered "assumed" since it lasts only as long as the outside force is applied. SEE OR SEARCH THIS CLASS, SUBCLASS: 66, for a pivoted lamp or lamp support combined with vehicle structure, e.g., fender. 306, for a light source or modifier held in place by resilient means and having no means recited to vary the position of the light source or modifier. 365+, for means to mount a tiltable or rotatable lamp housing (e.g., a "sealed beam" unit) in a recess in, for example, unclaimed vehicle structure.

270	With linear repositioning means:
	This subclass is indented under subclass 269.  Subject matter wherein means are provided to permit and guide movement of the light source (or support therefor) and modifier in a straight line with respect to the common support without moving relative to each other.

271	With actuator:
	This subclass is indented under subclass 269.  Subject matter having means to move the unit relative to its support.

272	Electric or pneumatic:
	This subclass is indented under subclass 271.  Subject matter wherein the actuator converts the potential energy of a voltage or pressure differential into a force which moves the unit.

273	Screw actuator:
	This subclass is indented under subclass 271.  Subject matter wherein the light unit is structurally related to its support by a relatively rotatable helix-shaped member such that rotation of the member about the axis of the helix produces movement of the unit in the direction of the axis of the helix.

274	Resiliently biased:
	This subclass is indented under subclass 271.  Subject matter wherein the unit is structurally related to its support by a yieldable means in such a way that relative movement between the unit and its support results in deformation of the yieldable means.

275	Plural axes:
	This subclass is indented under subclass 269.  Subject matter wherein the unit is rotatable with respect to its support about two or more axes. (1) Note. Light units mounted for universal movement are classifiable here; such means may include resilient positioning means urging the unit in one direction against a stop which prohibits movement in that direction but still allows tilting or rotating of the unit caused by, for example, a movement acting on the unit.

276	Condition responsive:
	This subclass is indented under subclass 257.  Subject matter with or including means which continuously senses a variable incident force or energy field and which varies or maintains the distribution, composition or intensity of light from the source or modifier in response to changes in the sensed force or energy. (1) Note. The sensing means of this subclass may respond, for example, to relative changes in direction of the force or gravity, changes in gas pressure, changes in incident radiant energy or changes in thermal energy. (2) Note. The condition responsive means of this subclass type may vary the distribution composition or intensity of light continuously with changes in the sensed force or energy or abruptly at some level of sensed force or energy. SEE OR SEARCH THIS CLASS, SUBCLASS: 384, for a light source or light source support, per se, movable by a gravity responsive pivoted weight. SEE OR SEARCH CLASS: 160,  Flexible or Portable Closure, Partition, or Panel,   subclasses 1+ for automatically controlled flexible closures and partitions of general utility. 250,  Radiant Energy,   subclasses 200+ for photocell electric circuits and photocell apparatus. Indented subclass 205 includes those photocells which control a shutter in the light path between light source and photocell; and subclasses 552+ include a photocell means which detects a light emitting source wherein the source is solid state. 315,  Electric Lamp and Discharge Devices: Systems,   subclasses 82+ and 149+ for photoelectrically controlled electric lamp circuits (e.g., shifting from "bright" to "dim" filament). 340,  Communications: Electrical,   appropriate subclasses for condition responsive lamps which convey information about the condition sensed.

277	Adjustable or repositionable modifier:
	This subclass is indented under subclass 257.  Subject matter wherein means is provided for structurally relating the modifier to the light source, light source support or some other part of the claimed combination in two or more positions of the illuminated surface of the modifier or from an illuminated position to an unilluminated position.

278	Flexible modifier:
	This subclass is indented under subclass 277.  Subject matter wherein the modifier is made of a deformable material and is adjusted or repositioned by deformation.

279	Louvered or grid type modifier movable as a unit:
	This subclass is indented under subclass 277.  Subject matter wherein the modifier includes at least two spaced adjacent modifying means, each having at least two plane or curved surfaces of the type generated by a straight or curved line (the "generatrix"); the means being so arranged relative to each other and to the light source that (a) no two of the surfaces are generated by an extension of the same generatrix, (b) one of the surfaces of one means faces one of the surfaces of the adjacent means, (c) one of the surfaces of each means is exposed to light from the light source, and (d) light from the source is able to pass both surfaces of each means and at least one of the surfaces in a direction parallel or tangent to its generatrix, the means movable relative to the light source but fixed relative to each other. (1) Note. A "grid" for purposes of classification in this subclass consists of at least two intersecting pairs of louvers. (2) Note. The two spaced adjacent means of this subclass may be part of the same element, as for example, a spiral louver.

280	In plane, or extension of modifying surface:
	This subclass is indented under subclass 277.  Subject matter wherein the illuminated surface of the modifier is planar or a surface of revolution generated by the rotation of a straight or curved line generatrix about an axis and (a) if planar, the modifier is movable such that the illuminated surface moves only in its own plane, or (b) if curved, the modifier is movable such that the illuminated surface is rotated about the axis of its generatrix.

281	Plural, relatively movable:
	This subclass is indented under subclass 280.  Subject matter having two or more adjustable or repositionable modifiers, each with a modifying surface movable in its own plane or extension, the modifiers being movable relative to each other. (1) Note. Classifiable in this subclass is, for example, the combination of a light source and an iris type shutter.

282	Angularly adjustable or respositionable:
	This subclass is indented under subclass 277.  Subject matter wherein the modifier is movable between two or more positions by rotation about at least one axis. (1) Note. If claimed combinations classifiable here includes modifiers which are disclosed as being adjustable or repositionable in the plane or extension of the modifying surface, such combinations are placed as originals in subclasses 280 or 281, contrary to normal classification procedure, in order to avoid proliferation of cross-reference copies.

283	Plural, relatively movable:
	This subclass is indented under subclass 282.  Subject matter having two or more adjustable or repositionable modifiers, at least one of which is angularly adjustable or repositionable, the modifiers being movable relative to each other.

284	With actuator:
	This subclass is indented under subclass 282.  Subject matter having means movable with respect to the modifier and so structurally related thereto that movement of the means relative to the modifier moves the modifier relative to the light source or light source support.

285	Adjustable or repositionable light source or light source support :
	This subclass is indented under subclass 257.  Subject matter wherein the light source or light source support is movable between at least two positions relative to some other part of the claimed combination.

286	Electromagnetic actuator:
	This subclass is indented under subclass 285.  Subject matter having means to establish an electromagnetic force which acts directly or through a mechanical motion transmission means on the light source or light source support to move the light source or light source support from one position to another.

287	Angularly adjustable or repositionable:
	This subclass is indented under subclass 285.  Subject matter wherein the light source is movable in a curved path.

288	Resiliently biased:
	This subclass is indented under subclass 285.  Subject matter wherein the light source is urged in at least one direction by an elastically deformable means (e.g., spring).

289	Screw actuated:
	This subclass is indented under subclass 285.  Subject matter wherein the light source is supported by means engaging a helix bearing member in such a way that when the helix bearing member is rotated about the axis of the helix, the light source is moved by the helix in the axial direction.

290	Louvered or grid type modifier:
	This subclass is indented under subclass 257.  Subject matter wherein the modifier includes at least two spaced adjacent modifying means, each having at least two plane or curved surfaces of the type generated by a straight or curved line (the "generatrix"); the means being so arranged relative to each other and to the light source that (a) no two of the surfaces are generated by an extension of the same generatrix, (b) one of the surfaces of one means faces one of the surfaces of the adjacent means, (c) one of the surfaces of each means is exposed to light from the light source, and (d) light from the source is able to pass both surfaces of each means and at least one of the surfaces in a direction parallel or tangent to its generatrix. (1) Note. A "grid" for purposes of classification in this subclass consists of at least two intersecting pairs of louvers. (2) Note. The two spaced adjacent means of this subclass may be part of the same element, as for example, a spiral louver. SEE OR SEARCH THIS CLASS, SUBCLASS: 325, for angularly adjustable louvered or grid type modifiers, per se. 330, for panel type refractor modifiers which may include louvers or grids. 342, for louvered or grid type reflectors, per se. 354, for louvered or grid type translucent or opaque modifiers, per se.

291	Including curved modifying surface:
	This subclass is indented under subclass 290.  Subject matter wherein at least one of the surfaces exposed to light from the light source is nonplanar.

292	Including nonparallel modifying surfaces:
	This subclass is indented under subclass 290.  Subject matter wherein at least two of the surfaces exposed to light from the light source converge towards each other.

293	Including selected wavelength modifier (e.g., filter):
	This subclass is indented under subclass 257.  Subject matter wherein the modifier has different effects on radiation of different wavelengths, as for example, absorbing some and transmitting others or transmitting some and reflecting others.

294	With ventilating, cooling or heat insulating means:
	This subclass is indented under subclass 257.  Subject matter combined with means to conduct heat away from part of the combination or to prevent heat from being conducted to a part of the combination.

295	With rheostat or switch:
	This subclass is indented under subclass 257.  Devices provided with means to activate the light unit or with means to regulate the strength of an electric current supplied to the light unit by varying the resistance of the circuit.

296.01	Including reflector:
	This subclass is indented under subclass 257.  Subject matter wherein a surface is included that redirects incident light back into the medium from which the light came. SEE OR SEARCH THIS CLASS, SUBCLASS: 217.05, for reflector-type modifier in an elongated light unit or support. 341, for reflectors, per se, for illuminating purposes.

296.02	Having a particular material:
	This subclass is indented under subclass 296.01.  Subject matter wherein a characteristic of the substance of the reflector is specified. SEE OR SEARCH THIS CLASS, SUBCLASS: 311.03, for a particular material in a translucent or transparent modifier. 582, for a specific material (e.g., type of light-conducting material, material of pipe or rod) in a light fiber, rod, or pipe.

296.03	Glass:
	This subclass is indented under subclass 296.03.  Subject matter wherein the material is a transparent or translucent material consisting of a mixture of silicates.

296.04	Metal:
	This subclass is indented under subclass 296.03.  Subject matter wherein the material is a good conductor of electricity and heat and is a chemical element.

296.05	Having a particular shape:
	This subclass is indented under subclass 296.01.  Subject matter wherein the spatial form or contour of reflector is specified. SEE OR SEARCH THIS CLASS, SUBCLASS: 311.06, for a particular shape in a translucent or transparent modifier.

296.06	Elliptical:
	This subclass is indented under subclass 296.05.  Subject matter wherein the reflective surface conforms at least in part to a surface generated by the revolution of an ellipse about its major or minor axis.

296.07	Concave:
	This subclass is indented under subclass 296.05.  Subject matter wherein the shape that is specified is a surface that is curving in or hollowed inward. SEE OR SEARCH THIS CLASS, SUBCLASS: 217.07, for concave reflector in a light source (or support therefor) and modifier.

296.08	Parabolic:
	This subclass is indented under subclass 296.05.  Subject matter wherein the reflecting surface conforms at least in part to a surface generated by the revolution of a parabola about its axis. SEE OR SEARCH THIS CLASS, SUBCLASS: 217.06, for parabolic reflector in a light source (or support therefor) and modifier.

296.09	Mirror:
	This subclass is indented under subclass 296.01.  Subject matter wherein a polished or smooth surface forms images by reflection.

296.1	Collimating:
	This subclass is indented under subclass 296.01.  Subject matter comprising means that produce parallel rays of light. SEE OR SEARCH THIS CLASS, SUBCLASS: 311.12, for collimating in a translucent or transparent modifier.

297	With or including plural, distinct reflecting surfaces:
	This subclass is indented under subclass 296.01.  Subject matter having either one modifier with two reflecting surfaces or two modifiers, each with one reflecting surface; the surfaces being distinguished either by being separated by nonreflecting areas or spaces or by being generated by noncolinear straight lines; a curve and a straight line or by two different curves. (1) Note. One of the surfaces may be integral with, or be a reflecting coating on, the light source envelope, but for a light source with a reflecting coating on its envelope, per se, see the search notes below. SEE OR SEARCH CLASS: 313,  Electric Lamp and Discharge Devices,   subclasses 113+ for a light source with a reflecting coating on the envelope.

298	Opposed:
	This subclass is indented under subclass 297.  Subject matter wherein the two reflecting surfaces are so arranged relative to each other and to the light source that light from the source is reflected by one surface onto the other.

299	With or including refractor:
	This subclass is indented under subclass 298.  Subject matter wherein at least one reflecting modifier consists of or is combined with a transparent material having surfaces so arranged relative to at least some of the incident light from the source that the angle of entry of the light with respect to the illuminated surfaces is different from the angle of the emergent light with respect to the surface from which it emerges.

300	With or including translucent or transparent modifier:
	This subclass is indented under subclass 298.  Subject matter wherein at least one modifier consists of or is combined with a modifier made of material pervious to light.

301	With or including planar reflecting surface:
	This subclass is indented under subclass 298.  Subject matter wherein at least one of the reflecting surfaces lies at least in part in one plane.

302	With or including coaxial reflecting surfaces:
	This subclass is indented under subclass 298.  Subject matter wherein at least two opposed reflecting surfaces are generated by the revolution of different curved or straight lines (generatrices) revolved about the same axis. SEE OR SEARCH CLASS: 280,  Land Vehicles,   subclass 816 for skis and ski poles having lights combined therewith.

303	With or including means blocking axial rays:
	This subclass is indented under subclass 302.  Subject matter wherein light in both directions along the axis of the coaxial surfaces is blocked either by the light source support or a reflecting surface or some other opaque modifier.

304	Coaxial:
	This subclass is indented under subclass 297.  Subject matter wherein two of the reflecting surfaces are generated by the revolution of different curved or straight lines about the same axis. (1) Note. One of the surfaces may be integral with, or be a coating on, the light source envelope.

305	With or including means modifying axial rays:
	This subclass is indented under subclass 304.  Subject matter wherein light in both directions along the axis of the coaxial surfaces is intercepted by either the light source support or an opaque, translucent or transparent modifier.

306	With resilient means to position source or modifier:
	This subclass is indented under subclass 296.01.  Subject matter wherein movement of the light source, the modifier or both with respect to some other part of the recited combination is prevented in at least one direction by the force exerted by an elastic means under stress. (1) Note. The elastic means may act directly on the element being held by it or indirectly as through a latch. (2) Note. The elastic means may also have another function as, for example, carrying current to the light source. Bayonet-type sockets are often of this type. SEE OR SEARCH THIS CLASS, SUBCLASS: 267, for a light source or modifier resiliently biased against an element with a flexible means between the light source or modifier and the element to hermetically seal the juncture. 269, for resiliently mounted light units with means to rotate or tilt the light unit against the effect of the resilient means from one position to another.

307	With or including translucent or transparent modifier:
	This subclass is indented under subclass 296.01.  Subject matter wherein the reflecting surface is part of or in combination with a modifier made of light pervious material.

308	Refractor:
	This subclass is indented under subclass 307.  Subject matter wherein the light pervious material is transparent and has surfaces arranged relative to at least some of the incident light from the source such that the angle of entry of the light with respect to the light-facing surface is different from the angle of the emergent light with respect to the surface from which it emerges.

309	With complex surface:
	This subclass is indented under subclass 308.  Subject matter wherein one of the surfaces is generated by two or more straight lines or curves moving either linearly or angularly about one or more axes, such surfaces being generally characterized as "faceted" or "corrugated".

310	Enclosed light source:
	This subclass is indented under subclass 296.01.  Subject matter wherein means are provided to completely encase the light source (and its envelope, if any) so that the atmosphere inside the means is isolated from the atmosphere outside. (1) Note. The means may be or include a modifier. SEE OR SEARCH THIS CLASS, SUBCLASS: 267, for means hermetically sealing the light source from outside atmosphere or for containing the light source, support therefor or modifier in a gas.

311.01	Including translucent or transparent modifier:
	This subclass is indented under subclass 257.  Subject matter wherein the modifier is made of a light pervious material. (1) Note. Light pervious materials include light pervious fabrics even though the material out of which the fabric is made may not be light pervious.

311.02	Having light-emitting diode:
	This subclass is indented under subclass 311.01.  Subject matter comprising a two-electrode semiconductor device emitting incoherent optical radiation when biased by a voltage in a forward direction. SEE OR SEARCH THIS CLASS, SUBCLASS: 545, for plural light-emitting diodes in a common housing in a vehicle. 555, for light-emitting diode in a light fiber, rod, or pipe. 612, for light-emitting diode in an edge lighted panel. 800, for light-emitting diode in a cross-reference art collection. SEE OR SEARCH CLASS: 257,  Active Solid-State Devices (e.g., Transistors, Solid-State Diodes),   subclass 98 for an incoherent light-emitter structure with a reflector, opaque mask, or optical element.

311.03	Having a particular material:
	This subclass is indented under subclass 311.01.  Subject matter wherein a characteristic of the substance of the translucent or transparent modifier is specified. SEE OR SEARCH THIS CLASS, SUBCLASS: 296.02, for a particular material in a reflector in a light source (or support therefor) and modifier. 582, for a specific material (e.g., type of light-conducting material, material of pipe or rod) in a light fiber, rod, or pipe.

311.04	Plastic:
	This subclass is indented under subclass 311.03.  Subject matter wherein the material is any of numerous organic synthetic or processed materials that are mostly thermoplastic or thermosetting polymers of high molecular weight that can be made into objects, films, or filaments.

311.05	Glass:
	This subclass is indented under subclass 311.03.  Subject matter wherein the material is a transparent or translucent material consisting of a mixture of silicates.

311.06	Having a particular shape:
	This subclass is indented under subclass 311.01.  Subject matter wherein the spatial form or contour of the modifier is specified. SEE OR SEARCH THIS CLASS, SUBCLASS: 296.05, for a particular shape in a reflector in a light source (or support therefor) and modifier.

311.07	Parabolic:
	This subclass is indented under subclass 311.06.  Subject matter wherein the reflecting surface conforms at least in part to a surface generated by the revolution of a parabola about its axis.

311.08	Elliptical:
	This subclass is indented under subclass 311.06.  Subject matter wherein the reflective surface conforms at least in part to a surface generated by the revolution of an ellipse about its major or minor axis.

311.09	Concave:
	This subclass is indented under subclass 311.06.  Subject matter wherein the shape that is specified is a surface that is curving in or hollowed inward.

311.1	Convex:
	This subclass is indented under subclass 311.06.  Subject matter wherein the shape that is specified is a surface that is curved or rounded outward like the exterior of a sphere or circle.

311.11	Mirror:
	This subclass is indented under subclass 311.01.  Subject matter wherein the modifier includes a polished or smooth surface that forms images by reflection.

311.12	Collimating:
	This subclass is indented under subclass 311.01.  Subject matter comprising means that produce parallel rays of light. SEE OR SEARCH THIS CLASS, SUBCLASS: 296.1, for collimating in a reflector in a light source (or support therefor) and modifier.

311.13	Ornamental or decorative:
	This subclass is indented under subclass 311.01.  Subject matter including means to give a pleasing effect to the eye. SEE OR SEARCH THIS CLASS, SUBCLASS: 565, for ornamental or decorative-type structure in light fiber, rod, or pipe. 806, for ornamental or decorative-type structure in a cross-reference art collection.

311.14	Cover:
	This subclass is indented under subclass 311.01.  Subject matter including means to place a lid or top over the modifier.

311.15	Molded:
	This subclass is indented under subclass 311.01.  Subject matter wherein plastic articles were formed by shaping using heat.

312	LIGHT PERVIOUS CHIMNEYS OR ACESSORIES THEREFOR:
	This subclass is indented under the class definition.  Subject matter comprising hollow, open-ended tube-like means for surrounding a flame-type light source to protect the flame or to protect the environment from the flame and to guide the flow of ambient air to or from the flame to promote combustion or to carry away combustion products while permitting the egress of light from the flame, or means cooperable with such means to improve or insure its proper functioning. (1) Note. The classification of claimed subject matter in this subclass or the subclasses indented hereunder may necessarily be based on disclosure of intended use. SEE OR SEARCH THIS CLASS, SUBCLASS: 356, for chimney-like modifiers (e.g., frosted) for incandescent light source. 363, for nonmodifying light-permeable enclosures of light sources. 376+, for nonmodifying chimney-like incandescent light protecting guards.

313	Attachments:
	This subclass is indented under subclass 312.  Subject matter comprising means engaging and positioned at least in part by the chimney and cooperable therewith to improve or ensure the proper functioning of the chimney other than means to support or hold the chimney in place. SEE OR SEARCH THIS CLASS, SUBCLASS: 314, for means to support or hold the chimney relative to the light source. 379, for smoke bells. 380, for spark arrestors. SEE OR SEARCH CLASS: 126,  Stoves and Furnaces,   subclass 258 for heater chimney with article support.

314	Chimney support or holder:
	This subclass is indented under subclass 312.  Subject matter comprising means to secure the chimney relative to the light source against dislocation by exterior forces (e.g., force of gravity, acceleration or deceleration of a vehicle).

315	Composite:
	This subclass is indented under subclass 312.  Subject matter wherein the chimney is made up of distinct parts or elements. (1) Note. The chimney may be part transparent and part opaque or it may be made of separate parts to avert breakage by unequal expansion. (2) Note. The parts of the chimney can include a shade or means to block light rays. SEE OR SEARCH THIS CLASS, SUBCLASS: 351+, for a shielding means and a chimney.

316	Modified base:
	This subclass is indented under subclass 312.  Subject matter wherein the bottom part of the chimney has a special form or shape to engage with a support element. SEE OR SEARCH THIS CLASS, SUBCLASS: 314, for a chimney with a modified base and support means.

317	LIGHT MODIFIER:
	This subclass is indented under the class definition.  Subject matter comprising means to alter the distribution or composition of incident light by changing its direction or by absorption of some or all of its energy. (1) Note. Some terms used to denote light modifying structure may also be used to denote structure which does not modify incident light. Placement of such structure in this subclass or the subclasses indented hereunder will depend on the disclosed proximate function of the structure in the claimed combination. For example, structure denoted as a "lens" which is disclosed as focusing or otherwise redirecting light is classifiable in this subclass or the subclasses indented hereunder, but structure denoted as a "lens" which is disclosed as merely covering or protecting a light source is not classifiable here. Other examples of ambiguous terms include "shade," "globe," "bowl," "shield," and "screen." SEE OR SEARCH THIS CLASS, SUBCLASS: 376+, "guard means" for structure denoted as a "lens" which is disclosed as merely covering or protecting a light source.

318	Fluid medium type:
	This subclass is indented under subclass 317.  Subject matter wherein a fluid medium is employed to modify light from a source. SEE OR SEARCH THIS CLASS, SUBCLASS: 331, for plural successive light transmitting elements. SEE OR SEARCH CLASS: 359,  Optical: Systems and Elements,   subclass 886 for a filter including a fluid.

319	Adjustable or positionable:
	This subclass is indented under subclass 317.  Subject matter including means to allow at least a portion of the modifier to shift from one position to another with respect to a base or support structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 277+, for a light source or support and a modifier adjustable or repositionable relative thereto. 352, for a shielding means that is collapsible or folding.

320	Flexible:
	This subclass is indented under subclass 319.  Subject matter wherein the modifier is made of a deformable material and is adjusted or repositioned by deformation. SEE OR SEARCH THIS CLASS, SUBCLASS: 278, for a light source or support therefor and a flexible modifier.

321	Shutter type:
	This subclass is indented under subclass 319.  Subject matter wherein the modifier is planar and movable only in its own plane. SEE OR SEARCH THIS CLASS, SUBCLASS: 280+, for a modifier movable in a plane and a light source or support therefor. 323, for a curved modifier that moves in a curved plane.

322	Angularly:
	This subclass is indented under subclass 319.  Subject matter wherein the modifier is movable by rotation about at least one axis.

323	In plane or modifier surface:
	This subclass is indented under subclass 322.  Subject matter wherein the modifier has a surface of revolution generated by the rotation of a straight curved line generatrix about an axis and is movable such that the surface is rotated about the axis of its generatrix. SEE OR SEARCH THIS CLASS, SUBCLASS: 280+, for a curved modifier that moves in a curved plane and a light source or support therefor. 321, for a modifier that is planar and moves in its own plane.

324	With actuator:
	This subclass is indented under subclass 322.  Subject matter having means to move the modifier with respect to its base or support structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 284, for means to move a modifier with respect to light source or support therefor.

325	Louvered or grid type:
	This subclass is indented under subclass 322.  Subject matter wherein the modifier includes at least two spaced adjacent modifying means, each having at least two plane or curved surfaces of the type generated by a straight or curved line (the "generatrix"); the means so arranged relative to each other that (a) no two of the surfaces are generated by an extension of the same generatrix, (b) one of the surfaces of one means faces one of the surfaces of the adjacent means, and (c) light is able to pass both surfaces of each means and at least one of the surfaces in a direction parallel or tangent to its generatrix, and wherein the means are pivoted either individually or as a unit for angular adjustment or repositioning relative to each other or to a common support. (1) Note. A "grid" for purposes of classification in this subclass consists of at least two intersecting pairs of louvers. (2) Note. The two spaced adjacent means of this subclass may be part of the same element as, for example, a U-shaped or spiral louver.

326	Refractor:
	This subclass is indented under subclass 317.  Subject matter comprising a light pervious material having a pair of opposed refracting surfaces, at least one of which is, at least in part, so angularly related to the other surface that the path of a light ray incident on one opposed surface of the material and the path of the same ray after it emerges from the material through the other opposed surface are not parallel. (1) Note. A refracting surface of this subclass type comprises an interface between the material of the refractor and some other material (usually air) in which the speed of light is different. (2) Note. A light pervious material having only parallel refracting surfaces, such as window pane, or concentric refracting surfaces, such as a nonfocusing or nondispersing headlight lenses, is not considered a refractor of this subclass type. For the loci of such devices, see the search notes below. SEE OR SEARCH THIS CLASS, SUBCLASS: 318, for a liquid type refractor. 363, for transparent globe type housings of the nonlight-modifying type. 375, for glass window-type housing closures. 376, for nonmodifying-light source protecting means made of transparent material. SEE OR SEARCH CLASS: 313,  Electric Lamp and Discharge Devices,   subclasses 110+ for electric lights, per se, which include a refractor as an integral part thereof. 343,  Communications: Radio Wave Antennas,   subclasses 753+ for antennas with a spaced or external radio wave refractor; subclass 783 for waveguide-type antennas with an internal wave refraction means; and subclasses 909+ for radio wave refracting means, per se. 359,  Optical: Systems and Elements,   for optical elements of general use, see subclasses 591+ for means for illuminating building’s interior with outside light, and subclasses 642+ for lenses. 404,  Road Structure, Process, or Apparatus,   subclasses 22+ for a pavement with light admitting means. 428,  Stock Material or Miscellaneous Articles,   subclasses 156+ for a stock material product in the form of a single or plural layer web or sheet including a component of varying thickness and subclasses 426+ for a nonstructural composite web or sheet embodying one or more layers of glass.

327	With reflector:
	This subclass is indented under subclass 326.  Subject matter including means for causing a light ray striking a surface to return back into the medium from which it came. (1) Note. A prism which only reflects is placed in the coordinated subclasses below. If the prism both reflects and refracts, it is proper for this or the indented subclasses. SEE OR SEARCH THIS CLASS, SUBCLASS: 341, for reflectors, per se. SEE OR SEARCH CLASS: 343,  Communications: Radio Wave Antennas,   subclass 755 for antennas with spaced or external radio wave refractor and reflector.

328	Reflector separate from refractor:
	This subclass is indented under subclass 327.  Subject matter wherein the reflector and refractor are spaced from each other and are different elements. (1) Note. If the reflector and refractor are laminated together, they are one element and placed in subclass 327.

329	Enclosure type:
	This subclass is indented under subclass 327.  Subject matter wherein the modifier has means to envelop a light source. (1) Note. The enclosure may be made up of plural parts, e.g., refractor and reflector, etc. SEE OR SEARCH THIS CLASS, SUBCLASS: 363, for a protector in the shape of a globe.

330	Panel type:
	This subclass is indented under subclass 326.  Subject matter wherein the refractor has an overall rectangular perimeter having length and width greatly exceeding its thickness. (1) Note. The panel may be comprised of louver-like elements forming a lattice through which air may pass. SEE OR SEARCH THIS CLASS, SUBCLASS: 339, for prisms on a circular disk or undefined area.

331	Plural serial refractors:
	This subclass is indented under subclass 326.  Subject matter wherein there is more than one refractor and the refractors are so located with respect to each other that light ray from a source passing through one refractor will also pass through another refractor. SEE OR SEARCH THIS CLASS, SUBCLASS: 318, for a liquid enclosed within a refractor.

332	Separate sections:
	This subclass is indented under subclass 326.  Subject matter wherein the refractor has areas which are joined together to form a modifier. (1) Note. The joined areas are not integral but can be taken apart. SEE OR SEARCH THIS CLASS, SUBCLASS: 331, for refractors which may be joined together but the light ray passes successively therethrough.

333	With plural elements on both sides of main surface:
	This subclass is indented under subclass 326.  Subject matter wherein the intersections of each of the opposed surfaces with a transverse plane includes a plurality of convexities each of which constitute a refractor "element," the joined bases of which constitute a "main surface." (1) Note. The opposed surfaces of the subject matter of this subclass and the subclasses indented thereunder are, for example, corrugated or faceted.

334	Curved main surface:
	This subclass is indented under subclass 333.  Subject matter wherein at least one of the main surfaces is nonlinear. SEE OR SEARCH THIS CLASS, SUBCLASS: 338, for a curved main surface with plural similar curvilinear refracting elements. 340, for a curved main surface with plural angular refracting elements.

335	Curved lens type:
	This subclass is indented under subclass 326.  Subject matter wherein the intersection of one of the opposed surfaces and a transverse plane is or includes a curved line refracting element. (1) Note. For purposes of classification in this subclass and the subclasses indented hereunder, a distinct convexity in or of the intersection of the opposed surface with a transverse plane is referred to as a "refracting element" of the intersection. SEE OR SEARCH THIS CLASS, SUBCLASS: 333, for refractors wherein in the intersection of each of the opposed surfaces with a transverse plane includes a curved line refracting element.

336	Including diverse refracting elements on one surface:
	This subclass is indented under subclass 335.  Subject matter wherein the intersection of one of the opposed surfaces and a transverse plane includes a plurality of refractor elements of different sizes or shapes. SEE OR SEARCH THIS CLASS, SUBCLASS: 335, (1) Note, for the definition of "refracting element."

337	Prismatic type:
	This subclass is indented under subclass 336.  Subject matter wherein at least one of the refracting elements is comprised of at least two straight lines joined at an angle. SEE OR SEARCH THIS CLASS, SUBCLASS: 335, (1) Note, for the definition of "refracting element."

338	Plural elements on a curved surface:
	This subclass is indented under subclass 335.  Subject matter wherein two or more curved line refractor elements form convexities whose bases are joined to form a curved or angled base line. SEE OR SEARCH THIS CLASS, SUBCLASS: 335, (1) Note, for the definition of "refracting element."

339	Prismatic type:
	This subclass is indented under subclass 326.  Subject matter wherein the intersection of one of the opposed surfaces with a transverse plane includes a plurality of regularly occurring and regularly shaped convexities, each comprised of at least two straight lines joined at an angle. SEE OR SEARCH THIS CLASS, SUBCLASS: 326, for refractors comprised of randomly occurring prismatic type refracting surfaces of the type, for example, formed by sand blasting a glass surface.

340	Curved main surface:
	This subclass is indented under subclass 339.  Subject matter wherein the intersections of the other opposed surface and a transverse plane is a curve. SEE OR SEARCH THIS CLASS, SUBCLASS: 333, for prismatic type refractors wherein the surface opposed to the prismatic forms, in intersection with a transverse plane, a plurality of curved convexities.

341	Reflector:
	This subclass is indented under subclass 317.  Subject matter having a surface which redirects incident light back into the medium from which it came. (1) Note. The term "shade" may denote either structure which reflects light from its surface and/or structure which absorbs or scatters light internally. Thus, placement in this subclass or the subclasses indented hereunder of structure denoted as a "shade" must depend on its disclosed proximate function in the claimed combination. For structure denoted as a "shade" which is not disclosed as reflecting light from one of its surfaces, see the search notes below. SEE OR SEARCH THIS CLASS, SUBCLASS: 351+, for opaque or translucent modifiers including modifiers denoted as "shade," particularly subclasses 355+ for light permeable modifiers which scatter light by random internal reflections. SEE OR SEARCH CLASS: 313,  Electric Lamp and Discharge Devices,   subclasses 113+ for electric lamps, per se, which include a reflector as an integral part thereof. 343,  Communications: Radio Wave Antennas,   subclasses 755 , 761, 775, 779, 781+, 815, 817, 818+, and 834+ for antennas with a reflector; and subclasses 912+ for radio wave reflectors, per se. 359,  Optical: Systems and Elements,   subclasses 838+ for reflectors of general use, per se. 404,  Road Structure, Process, or Apparatus,   subclasses 6+ for reflection material in a traffic guide or barrier and subclasses 9+ for reflective material in a traffic director. 428,  Stock Material or Miscellaneous Articles,   subclasses 426+ for a nonstructural composite product including a layer of glass, and especially subclasses 433+ where the glass is next to a free metal or an alloy, resulting in most instances in a reflector or mirror surface.

342	Louvered or grid type:
	This subclass is indented under subclass 341.  Subject matter wherein the modifier includes at least two spaced adjacent modifying means, each having at least two plane or curved surfaces of the type generated by a straight or curved line (the "generatrix"); at least one of the surfaces of each means being reflective, the means being so arranged relative to each other that (a) no two of the surfaces are generated by an extension of the same generatrix, (b) one of the surfaces of one means faces one of the surfaces of the adjacent means, and (c) light is able to pass both surfaces of each means and at least one of the surfaces in a direction parallel or tangent to its generatrix. (1) Note. A "grid," for purposes of classification in this subclass, consists of at least two intersecting pairs of louvers. (2) Note. The two spaced adjacent means of this subclass may be part of the same element as, for example, a U-shaped or spiral louver.

343	With diverse modifier:
	This subclass is indented under subclass 341.  Subject matter combined with a modifier other than a reflector or refractor. SEE OR SEARCH THIS CLASS, SUBCLASS: 327, for a reflector and refractor.

344	With guard means:
	This subclass is indented under subclass 341.  Subject matter including means to protect at least part of an illuminating device or to protect an object, e.g., person, animal, etc., from an illuminating device.

345	With ventilating or cooling:
	This subclass is indented under subclass 341.  Subject matter including means to lower the temperature of or to move air to or from the reflector. (1) Note. The means to cool the reflector can be, for example, holes for air circulation or means to circulate air or fluid over the surface of a reflector.

346	Plural separate reflectors or separate sections:
	This subclass is indented under subclass 341.  Subject matter wherein there is one reflective surface spaced from another reflective surface so a light ray can pass between them or a reflective surface is joined to another reflective surface to form a single reflector. (1) Note. Surfaces laminated together do not constitute a single reflector of this subclass type.

347	Curved surface:
	This subclass is indented under subclass 341.  Subject matter wherein the intersection of the reflective surface and at least one transverse plane forms a curved line.

348	Patterned surface:
	This subclass is indented under subclass 347.  Subject matter having a repetitive arrangement of forms, elements, designs or decorations on at least a portion of the surface.

349	Including straight surface:
	This subclass is indented under subclass 347.  Subject matter wherein the intersection of the reflective surface and a transverse plane forms a line with curved and straight segments.

350	Bowl shaped main surface:
	This subclass is indented under subclass 347.  Subject matter having a concave reflective surface generated by a symmetrical curved line rotated 180 degrees about the axis of symmetry. SEE OR SEARCH THIS CLASS, SUBCLASS: 323, for a modifier of this subclass type generated by a segment of a circle (the generatrix) and which is repositionable about the center of the generatrix.

351	Translucent or opaque (e.g., shade):
	This subclass is indented under subclass 317.  Subject matter having a material which affects the distribution of light either by preventing the light from passing therethrough or by randomly scattering the light as it passes therethrough.

352	Collapsible or folding:
	This subclass is indented under subclass 351.  Subject matter wherein the modifier includes means to affect a reduction in its size from an operative condition to an inoperative condition. SEE OR SEARCH THIS CLASS, SUBCLASS: 319, for means to adjust the size or shape of a light modifier.

353	Including socket engaging means:
	This subclass is indented under subclass 351.  Subject matter wherein the modifier has means to fasten it to a shield or cover for a light source engaging light source support. SEE OR SEARCH THIS CLASS, SUBCLASS: 343, for a modifier and a reflector with socket engaging means.

354	Louvered or grid type:
	This subclass is indented under subclass 351.  Subject matter wherein the modifier includes at least two spaced adjacent modifying means, each having at least two plane or curved surfaces of the type generated by a straight or curved line (the "generatrix"); the means so arranged relative to each other that (a) no two of the surfaces are generated by an extension of the same generatrix, (b) one of the surfaces of one means faces one of the surfaces of the adjacent means, and (c) light is able to pass both surfaces of each means and at least one of the surfaces in a direction parallel or tangent to its generatrix. (1) Note. A "grid," for purposes of classification in this subclass, consists of at least two intersecting pairs of louvers. (2) Note. The two spaced adjacent means of this subclass may be part of the same element as, for example, a U-shaped or spiral louver.

355	Diffusing type:
	This subclass is indented under subclass 351.  Subject matter wherein the light is randomly scattered as it passes through the modifier. (1) Note. The light may be scattered by, for example, random internal reflections within the modifier from a plurality of points rather than from a surface.

356	Hollow body open at both sides:
	This subclass is indented under subclass 355.  Subject matter wherein the diffusing means is annular. SEE OR SEARCH THIS CLASS, SUBCLASS: 351+, for a shade when no diffusing material is claimed.

357	Including cloth covering:
	This subclass is indented under subclass 356.  Subject matter wherein the diffusing means is a woven or knitted fabric and is supported by an annular frame. SEE OR SEARCH THIS CLASS, SUBCLASS: 358, for annular, wire frame supported modifiers not recited as of the diffusing type.

358	Wire frame type:
	This subclass is indented under subclass 351.  Subject matter wherein the modifier means is supported at least in part by wire support structure.

359	External hood or visor:
	This subclass is indented under subclass 351.  Subject matter wherein the modifier is to be attached to the outer surface of a housing or light modifier so as to block light rays in at least one direction coming from a light unit. SEE OR SEARCH THIS CLASS, SUBCLASS: 323, for a modifier movable in its own plane.

360	Plural sections:
	This subclass is indented under subclass 351.  Subject matter wherein the means to modify the light is made of more than one piece. (1) Note. The pieces may be joined together by a frame or support. The means to join the pieces is not considered part of the modifying means. SEE OR SEARCH THIS CLASS, SUBCLASS: 332, for plural section refractors.

361	Curved surface:
	This subclass is indented under subclass 351.  Subject matter wherein at least part of a surface of the modifier that is exposed to light rays is nonlinear with respect to a flat plane. SEE OR SEARCH THIS CLASS, SUBCLASS: 323, for a modifier movable in its own plane.

362	HOUSING:
	This subclass is indented under the class definition.  Subject matter comprising means to entirely enclose a light source except for openings for the egress of light and for which means no other light modifying function is recited. (1) Note. Subject matter of this subclass type may only partially enclose a light source if it cooperates with some other means (e.g., "lens," "cover") to completely enclose the source except from openings for the egress of light. SEE OR SEARCH THIS CLASS, SUBCLASS: 317+, for housings combined with or comprising light modifiers.

363	Transparent globe type:
	This subclass is indented under subclass 362.  Subject matter having means for surrounding a light source wherein said means is made of light pervious material. (1) Note. The globe itself may assume various shapes such as spherical, semispherical, cylindrical, etc. (2) Note. Generally, the patents in this subclass claim globe structure which contributes to the entire enclosure of a light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 312, for a globe of the draft type, i.e., chimney effect.

364	Recessed:
	This subclass is indented under subclass 362.  Subject matter which is mountable fully or partially in a hollow place, as in the space behind a panel, ceiling, wall, etc., the panel, etc., having an opening therein for receiving the housing. (1) Note. A housing of this subclass type usually includes a supporting flange, mounted peripherally at or near the housing portion which engages the panel, etc., for positioning the housing in the hollow place.

365	With mounting means:
	This subclass is indented under subclass 364.  Subject matter comprising means for supporting the recessed housing in place, such as by attachment to the panel or some other structure behind the panel.

366	With adjustment for panel dimensions or slope:
	This subclass is indented under subclass 365.  Subject matter having adjustment means to allow for variations in panel thickness or panel angle so that the housing may be easily and properly mounted.

367	Frame with multiple light-transmitting panels:
	This subclass is indented under subclass 362.  Subject matter comprising a framework which includes sides (usually nonparallel) transparent to light, e.g., clear or partially clear glass panes.

368	With mounting means:
	This subclass is indented under subclass 362.  Subject matter comprising means for mounting the housing onto some surface or object. (1) Note. This subclass and subclasses indented hereunder differ from subclass 365 by being mounted "on" something rather than being mounted "in" something.

369	Shock absorbing:
	This subclass is indented under subclass 368.  Subject matter having resilient mounting means, such as a rubber washer, for inhibiting or preventing the transmission of abrupt movement, to protect the housing and the light source contained therein.

370	Arm or bracket:
	This subclass is indented under subclass 368.  Subject matter comprising an arm or bracket attached externally to the housing for mounting the housing.

371	Adjustable movement between arm and housing:
	This subclass is indented under subclass 370.  Subject matter comprising means for moving the housing relative to its supporting arm or bracket.

372	With adjustable light source:
	This subclass is indented under subclass 362.  Subject matter having means for repositioning the light source within the housing.

373	With cooling means:
	This subclass is indented under subclass 362.  Subject matter having means to eliminate heat build up, such as by air ventilating holes or cooling fins.

374	With closure fastener:
	This subclass is indented under subclass 362.  Subject matter comprising housings combined with means to hold a closure in position relative to the housing. (1) Note. Closures provided for in this subclass are of the type defined in subclass 375.

375	With closure:
	This subclass is indented under subclass 362.  Subject matter comprising a housing combined with transparent means to cover at least in part the opening for the egress of light.

376	GUARD MEANS:
	This subclass is indented under the class definition.  Subject matter having means to protect a part of an illuminating device from damage or tampering or to protect an object, e.g., person, animal, etc., from an illuminating device. (1) Note. Included in this subclass are guards in the form of a cage or screen.

377	Bulb engaging:
	This subclass is indented under subclass 376.  Subject matter wherein part of the guard has means to attach the guard to a light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 255, for a modifier with means to engage a light source.

378	Socket engaging:
	This subclass is indented under subclass 376.  Subject matter wherein part of the guard has means to attach the guard to a light source support. SEE OR SEARCH THIS CLASS, SUBCLASS: 344, for a guard and reflector means with socket engaging means. 353, for a shield and socket engaging means.

379	SMOKE BELLS:
	This subclass is indented under the class definition.  Subject matter comprising means placed over flame-type light sources to prevent the heat or smoke therefrom from blackening or otherwise injuring superimposed structures (e.g., ceilings). SEE OR SEARCH CLASS: 104,  Railways,   subclass 52 . 454,  Ventilation,   appropriate subclasses for smoke bells which may also ventilate a room or other structure.

380	SPARK ARRESTERS:
	This subclass is indented under the class definition.  Subject matter comprising means (e.g., screens) for preventing the escape of sparks or solid burning bodies from or the access of insects or dirt into flame type light sources. SEE OR SEARCH THIS CLASS, SUBCLASS: 164, for flame screens for miner"s safety lamps. SEE OR SEARCH CLASS: 110,  Furnaces,   subclasses 119+ for spark arrestors for nonillumination type flames.

381	GAS TAPS:
	This subclass is indented under the class definition.  Subject matter comprising a device applied to a gas fixture whereby means are provided for attaching a tube, generally a flexible one, to the gas fixture or its support for supplying fuel to an auxiliary gas-light fixture or burner without destroying the usefulness as illuminators of any of the gas fixture"s burner tips. SEE OR SEARCH CLASS: 138,  Pipes and Tubular Conduits,   subclasses 118+ for flexible pipes.

382	SUPPORTS:
	This subclass is indented under the class definition.  Subject matter comprising structural means to position, by itself or in combination with some other disclosed means, a light source or modifier with respect to some reference point or reference structure. (1) Note. The "reference structure" of this subclass may be included in the "structural means" of this subclass or it may not. The "reference structure" or "reference point" need not be on an element recited in the claims for structure of this subclass type to be classifiable in this subclass or the subclasses hereunder. (2) Note. The line between this class, subclasses 382+ and Classes 248, Supports and 439, Electrical Connectors, is as follows: Class 362, subclasses 382+ takes any combination of a support with significant structure of a light source or a light source support having structural features limited to use with the light source. Class 248 takes supporting structure, per se. The mere naming of a light source, as in the preamble of a claim or in any other way which does not positively include it as an element of the claim, will not operate to take the claim out of Class 248 unless the support itself is an essential part of the light source or has no obvious utility as a support in some other art classes. See Class 248 definitions, (2) Note, for lines between this class (362) and Class 248. Class 439 takes an electrical connector, per se. The mere recitation in a claim of a light source, which is not claimed as being connected to or mounted in the electrical connector, will generally not operate to take the claim out of Class 439. If an electrical connector in name only is claimed with supporting means which is not limited in use to a Class 362 light source, the claim is classifiable in Class 439. A detailed electrical connector (e.g., a claimed contact) with or without a support therefor, claimed with a light source in name only is classifiable in Class 439. If a detailed electrical connector is combined with a support which has structural features limiting the combination to use with a claimed light source, even if claimed in name only, the claim is classifiable in Class 362. See Class 439 definition, section III (1) and (2) for lines between this class (362) and Class 439. SEE OR SEARCH CLASS: 248,  Supports,   appropriate subclasses for structure for supporting light sources. 439,  Electrical Connectors,   appropriate subclasses for an electrical connector for use with a light source, especially subclasses 527+ for an electrical connector with supporting structure therefor.

383	Object sound or sighting controls movable light support:
	This subclass is indented under subclass 382.  Subject matter wherein the structural means to position a light source includes a pivoted support and (a) audible means to detect sound emitted by an object and to transmit the sound to the ears of a human operator or to a meter visually noted by a human operator, or (b) visual sighting means under the control of a human operator to locate an object and means under the control of the operator responsive to the audible means or to the visual sighting means connected to the pivoted support to pivot the light source support in the direction of the sound of sighting object. (1) Note. The subject matter of this subclass type includes, for example, aircraft detection search lights movable in two different planes.

384	Moving mass control movable light support:
	This subclass is indented under subclass 382.  Subject matter wherein the structural means to position a light source or modifier includes a pivoted lamp support, a freely moving material mounted to move in response to a change of direction or a change in velocity of the material and means connecting the freely movable material to the pivoted headlight support. (1) Note. The material may be solid or fluent material which forms the freely movable mass. (2) Note. Included are gyroscopes, pendulums and flywheels and the lamp support may be vertically or horizontally movable. SEE OR SEARCH THIS CLASS, SUBCLASS: 269+, for a tiltable or rotatable light source and modifier movable as a unit. 277+, for a light source and an adjustable or repositionable light source with a light modifier. 319+, for an adjustable positionable light modifier. 368+, for a light housing with an adjustable mounting means. 372, for a light housing with an adjustable light source.

385	Fluid pressure controls movable light support:
	This subclass is indented under subclass 382.  Subject matter wherein the structural means to position a light source or modifier includes a movable support for the light source or modifier and a motor driven by a liquid or a gas under pressure greater than or less than atmospheric pressure to move the movable support.

386	Electromagnetic operator controls movable light support:
	This subclass is indented under subclass 382.  Subject matter wherein the structural means to position a light source or modifier is a movable support for the light source or modifier and an electromagnetic operator connected to the support to move the support when the electromagnetic operator is energized. (1) Note. The electromagnetic operator includes a solenoid or electric motor and the electric circuit to energize the operator may be included in the claim. SEE OR SEARCH THIS CLASS, SUBCLASS: 35, for revolving lamps which may be electromagnetically rotated. 37+, for a vehicle steering mechanism or element actuated pivoted lamp or lamp support which may be electromagnetically actuated. 227+, for plural light sources, particularly subclass 233 for remote adjustment or positioning means for plural light sources, which may be electromagnetically operated. 272, for a light source or support and modifier which is tiltable or rotatable as a unit and is electromagnetically actuated. 286, for an adjustable or repositionable light source or light source support which is electromagnetically adjusted or repositioned. SEE OR SEARCH CLASS: 310,  Electrical Generator or Motor Structure,   appropriate subclasses, for an electric motor, particularly subclasses 12.01 through 12.33,for a linear motor, per se; and subclasses 49.01-49.55, for a rotary stepping motor. 318,  Electricity: Motive Power Systems,   subclasses 119+ for reciprocating or oscillating motor energized systems; subclass 139 for battery-fed motor systems; and subclasses 445+ for automatic and/or time delay circuits to energize an electric motor, particularly subclasses 466+ for movement, position or limit of travel control circuits for an electric motor.

387	With flexible power-cord storage member:
	This subclass is indented under subclass 382.  Subject matter which includes a flexible extensible electric cord to deliver electrical energy to a light source from an appropriate electrical source, and a cord storage member to hold the cord when not in use or to hold the excess cord not needed when in use. (1) Note. Rotating reels, fixed reels and housings to store the electric cord are included in this subclass. (2) Note. Class 248 can have reels for suspended supports even though limited to use with electrical conductors. Also, an in name only lamp or lamp unit combined with a storage device for the electrical power cord delivering power to the lamp or lamp unit is in Class 191. Class 242 will not take reels restricted to use with electrical conductors. SEE OR SEARCH THIS CLASS, SUBCLASS: 157, for self-powered lamps which include an extensible electric cord storage member. 258, for a light source or support therefor and a modifier with an extensible electric cord storage member. SEE OR SEARCH CLASS: 191,  Electricity: Transmission to Vehicles,   subclasses 122+ for flexible extension reels. 242,  Winding, Tensioning, or Guiding,   subclasses 324+ for a reeling device of general use, particularly subclasses 400+ for a reeling device combined with a nonreeling carrier, e.g., a portable electric appliance; and subclasses 388+ for a reeling device for multiple line segments, e.g., one fixed to an electrical source and a second portion connected to a shiftable electrical appliance. 248,  Supports,   subclass 329 for a suspended support by a cord having a reel on which the cord is wound.

388	Convertible support:
	This subclass is indented under subclass 382.  Subject matter wherein the support has means enabling it to cooperate with either a horizontal or a vertical surface to position a light source or modifier with respect thereto.

389	Antislipping:
	This subclass is indented under subclass 382.  Subject matter having means to increase the frictional resistance to relative movement between the support and the reference structure without increasing the force between the two. (1) Note. This device is generally a formation of spurs projecting from the bottom of the support to prevent displacement when placed on slippery surfaces.

390	Shock absorbing:
	This subclass is indented under subclass 382.  Subject matter having resilient means for inhibiting or preventing the transmission of abrupt motion between one part of the support and another or the reference structure.

391	Line-wire or cable-attaching support:
	This subclass is indented under subclass 382.  Subject matter wherein the support includes means to suspend a light source or modifier from a suspended cable or line. (1) Note. The cable or line is suspended from two points, and the support of this subclass type is attachable to the cable or line between the two points.

392	Imitation candle support:
	This subclass is indented under subclass 382.  Subject matter wherein the support is covered by or comprises means which duplicates, in appearance, a candle. SEE OR SEARCH THIS CLASS, SUBCLASS: 161+, for candle-type illuminating means.

393	Adjustable:
	This subclass is indented under subclass 392.  Subject matter wherein part of the support is movable relative to another part of the support to reposition the light source or modifier.

394	Special switch operator:
	This subclass is indented under subclass 382.  Subject matter comprising means to open or close the circuit energizing an electrical light source other than such means which are merely nominally recited. SEE OR SEARCH CLASS: 200,  Electricity: Circuit Makers and Breakers,   subclass 2 for circuit make and break means which functions according to the fully raised position of the light source or modifier and subclasses 329+ for switch actuators or operators.

395	With standard (e.g., table and floor lamps):
	This subclass is indented under subclass 394.  Subject matter comprising a standard wherein a portion thereof actuates a circuit breaker. (1) Note. Ordinary pull-chain and push-button type switch actuators are not considered portions of standards of this subclass type even though mounted thereon since such actuators do not contribute to the supporting function of the standard. SEE OR SEARCH THIS CLASS, SUBCLASS: 410, for the term "standard", as used in the definition and notes of this subclass (395).

396	Clamp or hook:
	This subclass is indented under subclass 382.  Subject matter wherein the support includes either (a) at least two members movable towards each other to grip the reference structure between them, or (b) an effectively C-shaped member which is loosely engageable over a reference structure, to support a light source or light modifier against the force of gravity. SEE OR SEARCH CLASS: 2,  Apparel,   subclass 422 for light source supports combined with hats, generally miners" caps, which employ clamps or hooks.

397	Suction cup:
	This subclass is indented under subclass 382.  Subject matter wherein the support is attachable to the reference structure by means which creates or maintains a vacuum between the support and the reference structure, so that the force of atmospheric pressure counteracts forces tending to move the support and reference structure relative to each other.

398	Magnetic:
	This subclass is indented under subclass 382.  Subject matter which includes a magnetic means (permanent or electrical) to attach the support to the reference structure. SEE OR SEARCH CLASS: 248,  Supports,   subclass 206 for magnetically mounted brackets of general application. 439,  Electrical Connectors,   subclasses 38+ for an electrical connector with magnetic securing or supporting means.

399	Handle or bail:
	This subclass is indented under subclass 382.  Subject matter comprising a support liftable by a human being and having means conformable to the grasp of the human hands to facilitate the lifting of the support. SEE OR SEARCH CLASS: 16,  Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclasses 110+ for handles not otherwise classified. 220,  Receptacles,   subclasses 752+ for a container handle. 439,  Electrical Connectors,   subclasses 476.1+ for an electrical connector with a handle or a distinct manipulating means.

400	With means for receiving guard:
	This subclass is indented under subclass 399.  Subject matter wherein the handle or bail has structural means for attaching a means thereto to protect the illuminating means or the user.

401	Counterbalanced support:
	This subclass is indented under subclass 382.  Support comprising (a) supporting structure, such as a rod, which is supported by a fulcrum at some point between its ends, one portion of the rod between the fulcrum and an end of the rod being adapted for supporting the light source or light modifier and another portion of the rod between the fulcrum and the other end of the rod having means, usually adjustable for equalizing the otherwise upsetting force of the weight of the light source or modifier in order to position the light source or modifier; or (b) a system of ropes and pulleys, one end of the rope having the light source or modifier attached thereto and another end having balancing means for equalizing the force tending to move the light source.

402	Spring counterbalance:
	This subclass is indented under subclass 401.  Subject matter wherein the force equalizing means is a resilient member.

403	Support having gravity-type light source or light modifier raising and lowering means:
	This subclass is indented under subclass 382.  Subject matter comprising (a) means for supporting the light source or modifier from above against movement due to gravity, and (b) means for permitting the light source or modifier to be moved by the force of gravity from one supported position to another.

404	Ceiling-suspended support:
	This subclass is indented under subclass 382.  Subject matter which depends from an overhead horizontal surface, comprising means which extends for a substantial length between the ceiling or the canopy (cover) which engages the ceiling, and the light source or the light modifier. (1) Note. The suspended support of this subclass type is more than a "nipple-pipe" (commonly limited in the trade to a 6 inch length) which, when used, is usually concealed by a canopy. (2) Note. The canopy of this subclass type does not conceal a light socket or light source. SEE OR SEARCH THIS CLASS, SUBCLASS: 403, for adjustable supports comprising light source raising and lowering means. 416, for specialized hanging means for arc lamps. 430, for adjustable supports having means for being mounted to a reference structure, such as a ceiling. 437+, for a canopy for covering a socket or for supporting a light modifier. 457, for miscellaneous ceiling mounted supports with canopies.

405	Body member with plural radial arms (e.g., chandelier):
	This subclass is indented under subclass 404.  Subject matter comprising a member with a plurality of radial arms extending therefrom. (1) Note. Supports of this subclass type may have one or more ring type supports attached to the radial arms. (2) Note. The member of this subclass type may not be a prominent one, but may comprise only a central joint connection for the radial arms.

406	With mounting means:
	This subclass is indented under subclass 405.  Support comprising attaching means for connecting the member and its associated structure to the ceiling.

407	Cord-supported light source with light source directing means:
	This subclass is indented under subclass 404.  Subject matter comprising a cord or rope or an electrical conductor, which supports the light source, combined with a device for repositioning the light source and its light modifier to concentrate light rays on a desired area or object.

408	With light modifier holder:
	This subclass is indented under subclass 404.  Subject matter comprising a light modifier holder.

409	Nonelectric:
	This subclass is indented under subclass 404.  Subject matter for supporting a nonelectric light source.

410	Standard-type support (e.g., table or floor lamp):
	This subclass is indented under subclass 382.  Subject matter wherein the structural means is provided with means cooperable with an underlying (i.e., adjacent in the direction of the force of gravity) planar surface normal to the force of gravity to sustain or position without the aid of any securing device; the light source or modifier against movement having a component in the direction of the force of gravity (e.g., tilting or "tipping over"). (1) Note. The means cooperable with an underlying planar surface of this subclass type provides a "base" for the light source or modifier.

411	With electrical regulating means:
	This subclass is indented under subclass 410.  Subject matter including means for regulating electric power supplied to an electric light source (e.g., a resistance element, transformer, etc.) other than merely a nominally recited on-off switch.

412	Vase-type standard:
	This subclass is indented under subclass 410.  Subject matter wherein the standard is, or resembles, a vessel having a mouth of smaller area than the greatest cross-sectional area of the vessel.

413	Adjustable standard:
	This subclass is indented under subclass 410.  Subject matter wherein one part of the standard is repositionable relative to another part or to the reference point or structure.

414	With light source support mounted at top end of standard:
	This subclass is indented under subclass 410.  Subject matter comprising light source supporting means mounted at the top end of the standard.

415	Nonelectric:
	This subclass is indented under subclass 410.  Subject matter having nonelectric light source features.

416	Arc lamp hanger:
	This subclass is indented under subclass 382.  Subject matter comprising means for suspending an arc lamp from some reference point or structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 404+, for chandelier and other ceiling-suspended type supports.

417	Harp type support:
	This subclass is indented under subclass 382.  Support comprising means suspendable from the reference structure having at least two depending arms for supporting a light source therebetween. (1) Note. The arms are usually shaped for receiving an annular light modifier, e.g., shade.

418	Adjustable light support:
	This subclass is indented under subclass 382.  Subject matter wherein one part of the support is repositionable relative to another.

419	Having plural diverse motions:
	This subclass is indented under subclass 418.  Subject matter wherein the adjustable light support has structure to move the light support in a plurality of ways, each move being distinct from the other, or the adjustable light support has at least a portion of the adjustable light support movable in another way in addition to the movement of the adjustable support.

420	Plural headlight supports concurrently operated:
	This subclass is indented under subclass 419.  Subject matter wherein there are plural adjustable headlight supports, each support or a portion of each of the supports being pivoted in two different ways, and the plural headlight supports or the positions of the supports are connected so that both headlight supports or the portions of the headlights move together and manual means to pivot both headlight supports or both portions or the headlight supports in at least one of the two different ways. (1) Note. The term "manual" includes hand, feet, arm or other body portion operated motion transmission means.

421	With ball and socket light support:
	This subclass is indented under subclass 419.  Subject matter wherein the adjustable light source support includes a spherical bearing surface, a holder or outer member conforming to the bearing surface enclosing the bearing surface so that the bearing surface and the holder or outer member have relative movement with respect to each other to form a universally movable light support for a light source. (1) Note. The subject matter of this subclass type includes, for example, hemispherical ball and socket light supports. SEE OR SEARCH THIS CLASS, SUBCLASS: 227+, for plural lamp sources, particularly subclass 233 for remote adjustment or positioning means for the lamp source. 523+, for a vehicle or a vehicle element with an operating means to move a lamp, lamp support or subcombination of a lamp. SEE OR SEARCH CLASS: 248,  Supports,   subclasses 181.1+ for a stand having a ball and socket joint. 403,  Joints and Connections,   subclasses 52+ , particularly subclasses 122+ for ball and socket joints.

422	With coaxial motion transmission members:
	This subclass is indented under subclass 419.  Subject matter wherein the adjustable light support includes a tube capable of movement about the tube axis; a motion transmission member mounted for movement within the tube; the adjustable light support including a pivoted portion which forms the support of a light source capable of movement in addition to the movement of the tube about its axis and manual means connected to the tube to rotate the tube and the movable portion about the tube axis and connected to the motion transmission member to pivot the movable portion of the support selectively about its pivot.

423	With plural pairs of gears transmitting motion through internal member:
	This subclass is indented under subclass 422.  Subject matter wherein the internal motion transmission member is mounted in the tube for rotary movement and connected at each end of the member are a pair of rotating members with teeth which intermesh to transmit motion imparted by the manual means to the pivoted portion of the light support.

424	Internal coaxial member having straight line motion:
	This subclass is indented under subclass 422.  Subject matter wherein the internal motion transmission member is mounted for movement in a rectilinear manner and the internal motion transmission member connects the manual means to the pivoted portion of the light support so that the manual means imparting motion transfers motion to the pivoted portion by way of the internal motion transmission member.

425	Single reciprocating and turning member transmits plural different motions to the adjustable support:
	This subclass is indented under subclass 419.  Subject matter wherein the structure to move the light support in a plurality of ways includes a manually operated motion transmission member mounted to have straight line and circular motion connected to the adjustable support such that the straight line motion of the member causes the movable light support to turn one way and the circular movement of the member causes the support to move another way.

426

Fork support:

This subclass is indented under subclass 419.  Subject matter wherein the adjustable light source support has pivotal movement about a first axis and the support includes two diverging members, each member having a pivot point so that the two pivot points mount a light source or an element of a light source or an element of a light source for movement about a second axis different from the first axis. SEE OR SEARCH THIS CLASS, SUBCLASS: 39, for the combination of a vehicle steering mechanism or element and a pivoted lamp or lamp support which also has a pivoted motion about another axis under the control of manual means. 269+, for a light source or support and modifier which is tiltable and rotatable. 368+, for a light housing with mounting means which has movement about plural axes. 385, for a lamp support having motion about plural axes under the control of at least one fluid pressure motor. 386, for a lamp support having plural motions