Manual of U.S. Patent Classification
as of June 30, 2000

Class
D10
MEASURING, TESTING, OR SIGNALLING INSTRUMENTS (1) (2)

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> MEASURING, TESTING, OR SIGNALLING INSTRUMENTS (1) (2)
		EXCLUDED FROM THIS CLASS ARE:
		Abacus; see D18-6+.
		Clock combined with radio or television; see D14-131 and 170+.
		Clock combined with sign or display equipment; see D20-20.
		Control unit for recording, reproduction or communications equipment; see D14. Cribbage Board; see D21-343.
		Drawing, drafting or writing implement; see D19-35+.
		Flashlight or lantern; see D26.
		Grounding bar; see D13-133.
		Household measuring implement; see D7-300+.
		Lettering stencil; see D18-24+.
		Medical measuring instrument, e.g., audiometer, blood pressure measuring instrument, etc.; see D24-107+.
		Megaphone; see D14-204.
		Musical chime, bell, horn, etc.; see D17-22.
		Photographic light meter; see D16-238.
		Photographic rangefinder; see D16-220.
		Photometer, light meter or photographic exposure meter; see D16-238.
		Pressure regulating valve or pressure valve combined with gauge; D23-235.
		Pyrotechnic flare; see D22-112.
		Reminder or program indicator; see D20-18.
		Road or highway signs; see D20-17.
		Signaling lamp for vehicle; see D26-28+.
		Slide rule; see D18-9+.
		Vehicle instrument panel; see D12-192.
		Watchband bracelet, strap per se; see D11-3+.
		Watch or clock combined with lighter; see D27-145.
		Winding key for clock; see D8-347+.
1		CLOCK OR CLOCK CASE (3) (4)
2		. Combined (5)
3		. . With calendar
4		. . With weather instrument
5		. . With lamp or with provision therefor
6		. Simulative
7		. . Animate
8		. . . Humanoid
9		. . Plant life
10		. . Map or globe
11		. . Building
12		. . Vehicle
13		. . Ship's wheel
14		. Plural face
15		. Changeable exhibitor, e.g., digital type
16		. Floor type, e.g., grandfather clock, etc.
17		. Case front having openwork filigree or surrounding radiating elements
18		. With closure panel
19		. With handle or bail
20		. Laterally asymmetrical in front elevation
21		. Case having geometric configuration in front elevation
22		. . Substantially circular or oval
23		. . . With feet, distinct base or stand
24		. . Substantially rectangular or square
25		. . . All sides flat and plain
26		. . . With feet, distinct base or stand
27		. . Having flat and parallel sides
28		. . . With curved top
29		. . . With peaked or faceted top
30		WATCH, WRISTWATCH OR CASE (6)
31		. Combined
32		. . With wristband or strap
33		. Simulative
34		. . Animate
35		. . . Humanoid
36		. . Plant life
37		. Pocket type
38		. Wrist type
39		. . With dial and/or hand
40		TIME-MEASURING INSTRUMENT OR CASING (7)
41		. Recording, e.g., time clock, etc.
42		. Parking meter
43		. Metronome
44		. Sandglass
45		. Sundial
46		MEASURING, REGULATING OR INDICATING INSTRUMENT, OR CASING (8) (9) (27)
46.1		. Scorer or indicator for game or sport
46.2		. Food preparation type (e.g., measuring cup, spoon, etc.)
46.3		. . Plural compartment or cell
47		. Radiation, e.g., Geiger counter
48		. Egg testing, e.g., candling instrument
49		. Regulator or control
50		. . Temperature regulator or thermostat
51		. . . Combined with thermometer (10)
52		. Temperature, humidity, atmospheric condition (11)
53		. . Plural or combined
54		. . Simulative
55		. . Barometer
56		. . Moisture
57		. . Thermometer
58		. . . Expanding fluid type
59		. . Weather vane
60		. . Element or attachment (12)
61		. Geometric (13)
62		. . Combined
63		. . . Drafting machine
64		. . Template or comparator gauge (14)
65		. . Angle or direction (15)
66		. . . Transit or theodolite
67		. . . Aircraft instrument
68		. . . Compass (16)
69		. . . Spirit level
70		. . Linear or distance (17)
71		. . . Rule, tape or scale (18)
72		. . . . With casing, i.e., retractable type
73		. . . Micrometer, caliper or divider type
74		. . Element or attachment (12)
75		. Electrical property
76		. . Oscilloscope or oscillograph
77		. . Battery, vacuum tube, transistor or spark plug tester (19)
78		. . Provided with handle, or hand-held
79		. . . Clamp-around type
80		. . Element or attachment (12)
81		. Chemical (30)
82		. Balancer
83		. Weight, force or density
84		. . Specific gravity (20)
85		. . Pressure gauge
86		. . . Tire inflation type
87		. . Scale
88		. . . Combined
89		. . . Vertical spring type
90		. . . Beam or balance type
91		. . . Provided with load platform
92		. . . . Standing user type
93		. . . . . Readout at eye or waist level
94		. . Element or attachment (12)
95		. . . Beam or balance
96		. Volume, flow or rate
97		. . Counter
98		. . . Speedometer or tachometer
99		. . Public utility meter, i.e., gas, water, etc.
100		. . . Electric
101		. . Liquid quantity level
102		. Dial gauge or meter
103		. Element or attachment (12)
104		SECURITY OR SIGNAL INSTRUMENT, OR CASING (21)
105		. Lightning conductor or arrestor
106		. Alarm or control therefor (22)
107		. Buoy
108		. Elevator signal or call unit
109		. Visual (23)
110		. . Fender guide for vehicle
111		. . Lamp or reflector (28)
112		. . . Ignition timing light
113		. . . Road surface marker
114		. . . Flashing, warning or directing type
115		. . . . Multiple sequential lamps, e.g., "traffic light"
116		. Aural (24)
117		. . Curb feeler for vehicle
118		. . Annunciator or door chime
119		. . Air-operated (25)
120		. . . Siren or horn
121		. Element or attachment (12)
122		DIAL, INDICATOR HAND, OR OTHER ELEMENT OR ATTACHMENT
123		. Dial or face plate
124		. . Combined (29)
125		. . Substantially rectangular or square
126		. . Substantially circular or oval
127		. Indicator hand
128		. Watch or clock element, or attachment (26)
129		. . Movement or movement frame
130		. . . Pendulum
131		. . Bow, pendant, crown or stem
132		. . Crystal, cover or protector
		SEARCH NOTES FOR CLASS D10
		(1) Includes, in indented subclasses, elements or attachments which are used only with particular instruments and which cannot be placed in another class. When elements are common to several instruments in different subclasses, they are in subclasses 122+.
		(2) All patents are classified by full-line disclosure.
		(3) Includes front panel.
		(4) Excludes timer, sandglass and sundial. See, respectively, subclasses 40, 44 and 45.
		(5) Excludes "time clock". See subclass 41.
		(6) Includes stopwatch.
		(7) Includes timer.
		(8) Includes depth-measuring instrument, e.g., sonar.
		(9) Includes chart recorder.
		(10) Excludes thermometer per se. See subclasses 57 and 58.
		(11) Excludes rain gauge. See subclass 101.
		(12) Excludes dial or indicator hand. See, respectively, subclasses 122+ and 127. Includes Pitot tube.
		(13) Includes plumb bob.
		(14) Excludes eraser shield and lettering stencil. See Class D19, subclasses 37 and 40, respectively.
		(15) Includes T-square.
		(16) Includes element.
		(17) Includes altimeter and odometer.
		(18) Includes surveying rod or target.
		(19) Excludes hydrometer. See subclass 84.
		(20) Includes element.
		(21) For radar, see subclass 46.
		(22) Excludes bell, siren, etc. See subclasses 116+. Includes smoke detector.
		(23) Excludes pyrotechnic flare. See D22-112.
		(24) Includes bell. Includes wind chime.
		(25) Includes whistle.
		(26) Includes holder or stand.
		(27) Includes radar.
		(28) Subject matter in this and indented subclasses is distinguished from the subject matter in Class D26 in being exclusively for signaling purposes. For illumination lamps, or those combining both illumination and signaling functions, see Class D26. For lantern or flashlight, see D26.
		(29) Includes combination with hands.
		(30) Includes color comparator for swimming pool water and spectrum analysis device.

Information Products Division -- Contacts

Questions regarding this report should be directed to:

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Information Products Division
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Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov

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Last Modified: 6 October 2000