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 [Search a list of Patent Appplications for class 124]   CLASS 124,MECHANICAL GUNS AND PROJECTORS
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SECTION I - CLASS DEFINITION

This class includes the various forms of projectile-throwing or impelling apparatus in which the propelling agent is nonexplosive. The apparatus must carry or hold the projectile so that it may be used for aerial projection. This class also includes devices which actually expel the projectile, but have the projectile tethered to the projector to prevent loss of the projectile; and some devices having the structure of projectors, but having means at the end of a barrel to prevent actual expulsion of the projectile.

The Search notes below reference one of the following three subject matter areas:

(1)PROJECTORS

(2)TARGETS

(3)PROJECTILES

The specific subject matter area is noted parenthetically at the end of each search note.

SECTION II - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

42, Firearms,   for projecting devices using explosive charges to provide the projecting force. (Projectors)
43, Fishing, Trapping, and Vermin Destroying,   subclass 135 for a combination with the swatting element for swatting insects, in which a swatting element is projected by spring means. (Projectors)
43, Fishing, Trapping, and Vermin Destroying,   subclass 6 , for harpoons and spears. (Projectiles)
86, Ammunition and Explosive-Charge Making,   subclass 51, for ordnance-type, projectile making.
89, Ordnance,   for projecting devices using explosive charges to provide the projecting force. (Projectors)
102, Ammunition and Explosives,   subclasses 501+ for a projectile explosively fired from a gun; and particularly subclass 529 for a gun barrel cleaning projectile. (Projectiles)
114, Ships,   subclasses 238+ for launching devices for self-propelled torpedoes. (Projectors)
119, Animal Husbandry,   subclass 427 for devices for holding and releasing live objects to be used as targets. (Targets)
173, Tool Driving or Impacting,   appropriate subclass for a means for driving or impacting a tool or the like, and particularly subclasses 90+ and see the search notes therein for an impacting device. (Projectors)
175, Boring or Penetrating the Earth,   appropriate subclass for a projectile for boring or penetrating the earth, which may be combined with a projector therefor. (Projectiles)
209, Classifying, Separating, and Assorting Solids,   subclass 642 for devices and methods of throwing and projecting articles through space and for separately collecting the articles which take different paths. (Projectors)
221, Article Dispensing,   appropriate subclasses for article dispensers not otherwise provided for, and see particularly subclasses 208+ for article dispensers having a source of supply and a discharge assistant means to remove articles therefrom, and subclass 24 for article dispensers in forms simulating objects, including firearms. (Projectors)
222, Dispensing,   subclass 79 for devices simulating firearms or other projectors which project a stream of liquid. (Projectors)
241, Solid Material Comminution or Disintegration,   subclasses 5 , 39+, 274, and 275 for devices for projecting material to effect the comminution thereof. (Projectors)
244, Aeronautics and Astronautics,   subclass 63 for aircraft launching devices. (Projectors)
258, Railway Mail Delivery,   subclasses 5+ for devices combined with a vehicle or devices peculiarly adapted for throwing or projecting a mailbag or the like to or from a moving vehicle. (Projectors)
273, Amusement Devices: Games,   subclasses 108+ for an implement or device (either, per se, or in combination with other game apparatus) for projecting a game projectile during play of a surface projectile game so that it travels upon a surface at all times in its course of travel, and subclasses 317+ for an implement or device combined with other game apparatus for projecting a game projectile into the air during play of an aerial projectile game. (Projectors)
273, Amusement Devices: Games,   subclasses 108+ for a target (either per se or combined with any other game apparatus) which is used to play a surface projectile game and subclasses 317+ (either per se or combined with any other game apparatus) which is used to play an aerial projectile game. (Targets)
273, Amusement Devices: Games,   subclasses 108+ for a game projectile combined with any other game apparatus for playing a surface projectile game, subclasses 317+ for a game projectile combined with any other game apparatus for playing an aerial projectile game, and particularly subclasses 362+ thereunder for a target which also acts as a projectile by virtue of its being projected into the air (e.g., a clay pigeon which is projected into the air by a target-throwing trap). (Projectiles)
362, Illumination,   subclass 112 for light projectors combined with or simulating firearms. (Projectors)
446, Amusement Devices: Toys,   for a toy combined with a with a projector, particularly subclass 11 for a toy money box; subclass 45 for an autogyro; subclasses 63+ for a glider; subclass 308 for a figure toy; subclass 399 for a detonating projector and subclasses 429+ for a toy vehicle launcher. (Projectors)
473, Games Using Tangible Projectile,   for a device or implement for impelling, launching, or otherwise projecting a game projectile in which the following applies: (Projectors)
  • Any projector device or implement which is combined with any other game device or apparatus so as to constitute a game or sport.
  • (b) A striking type of projector device or implement, per se, which is used for a game or sporting purpose (such as a club, bat, racket, paddle, mallet, stick, etc.) and which is carried by (e.g., handheld) and manually manipulated by a user to strike and thereby project a game projectile such that substantially all of the force used to project the projectile is supplied by the user.
  • (c) A combined projector-catcher device, per se, which is used for a game or sporting purpose to fling or throw a projectile into the air, and to also catch a game projectile already moving through the air after it has been projected.
  • (d) Any projector device or implement, per se (other than one which is operated by explosive means) which is used for a game or sporting purpose and which is specifically adapted and intended to project a game projectile so that it travels upon a playing surface substantially at all times (i.e., the projectile is in contact with and moving over the playing surface either upon or immediately after projection).
473, Games Using Tangible Projectile,   for a target (either per se or combined with any other game apparatus) which is used to play a game which uses a tangible projectile. (Targets)
473, Games Using Tangible Projectile,   for a tangible game projectile (either per se or combined with any other game apparatus) used in the play of a game or sport. (Projectiles)
505, Superconductor Technology: Apparatus, Material, Process,   subclasses 150+ for high temperature (Tc greater than 30 K) superconducting systems or devices, particularly subclass 164 for projectile or launching device or system. (Projectors)
505, Superconductor Technology: Apparatus, Material, Process,   subclasses 150+ for high temperature (Tc greater than 30 K) superconducting systems or devices, particularly subclass 164 for projectile or launching device or system. (Targets)
D22, Arms, Pyrotechnics, Hunting and Fishing Equipment,   subclasses 103+ for ornamental designs for firearms. (Projectors)
D22, Arms, Pyrotechnics, Hunting and Fishing Equipment,   subclasses 113+ for designs for targets. (Targets)

SUBCLASSES

[List of Patents for class 124 subclass 1]    1MISCELLANEOUS:
 This subclass is indented under the class definition.  Device not classifiable above.
(1) Note. This subclass includes means for imparting rapid rotation to a propellor-like object which propels itself through the air because of its shape and rotation, or a device wherein gravity or a weight facilitates the launching of a missile.
  
[List of Patents for class 124 subclass 2]    2COMBINED WITH CAP EXPLODER:
 This subclass is indented under the class definition.  Devices having combined therewith means for exploding a cap or other explosive noise making device.

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42, Firearms,   subclasses 54+ for devices made to imitate firearms which explode a cap, but do not expel a projectile.
446, Amusement Devices: Toys,   subclasses 397+ for a device which explodes a cap, but does not simulate a firearm; especially subclass 399 for a device in which the explosion of a cop projects an element for the detonator.
  
[List of Patents for class 124 subclass 3]    3ELECTROMAGNETIC:
 This subclass is indented under the class definition.  Devices for projecting missiles through the air by means of electromagnetic impulses applied to the projectile during its progress through the barrel of the projecting device.

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54,for apparatus wherein an electrically- actuated striker causes a projectile to be impelled.

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310, Electrical Generator or Motor Structure,   subclasses 12+ for linear electric motors, per se, though disclosed for electromagnetic guns.
318, Electricity: Motive Power Systems,   subclass 38 for plural linear movement electric motor systems and subclass 135 for linear movement electric motor systems.
  
[List of Patents for class 124 subclass 4]    4CENTRIFUGAL:
 This subclass is indented under the class definition.  Devices for projecting missiles through the air by means of a centrifugal or swinging movement, as distinguished from a straight line impulsion.

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239, Fluid Sprinkling, Spraying, and Diffusing,   subclasses 7 , 650+, appropriate subclasses, 214+ and 380+ for methods and apparatus for scattering fluent material by centrifugal force.
241, Solid Material Comminution or Disintegration,   subclass 275 , for comminutors embodying centrifugal projecting means for the material.
  
[List of Patents for class 124 subclass 5]    5Hand:
 This subclass is indented under subclass 4.  Devices, which are held in the hand and caused to throw a missile by a swinging movement of the human arm. They may be assisted by a spring or flexible element in the throwing device but this must merely add to the effect of the throwing action of the human arm.

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7+,for devices wherein the spring is the primary projecting means, even though the device is held in the hand.

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102, Ammunition and Explosives,   subclasses 358+ for pyrotechnic devices combined with throwing devices, and subclass 486 for grenades combined with a handle, hand-grip or strand to assist throwing.
473, Games Using Tangible Projectile,   subclasses 505+ for a player held or attached implement for both projecting (often by a centrifugal flinging movement of a player"s arm) a projectile into the air and catching a projectile already moving through the air (e.g., a lacrosse stick, etc.), and subclass 615 for a player held or worn means for enhancing subsequent movement of a projectile that is thrown or otherwise projected by the player (e.g., a handheld or handworn means to assist a player to pitch a baseball that will have an enhanced curve during flight thereof, etc.).
  
[List of Patents for class 124 subclass 6]    6Mechanical:
 This subclass is indented under subclass 4.  Devices, in which the throwing movement is produced by mechanical means. Includes devices for mechanically pitching a baseball.

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473, Games Using Tangible Projectile,   subclass 421 for a batting backstop or cage (used in a playing field or court game or used to practice or train therefor) which may be combined with a projector which uses a centrifugal throwing movement to mechanically pitch a ball, and subclasses 422+ for a device (used to practice or train for the playing of a playing field or court game) which may be combined with a projector which uses a centrifugal throwing movement to mechanically pitch a ball.
  
[List of Patents for class 124 subclass 7]    7Spring:
 This subclass is indented under subclass 6.  Devices in which the mechanical throwing device is actuated by a spring. Includes devices for mechanically pitching a baseball.

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16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclasses 72+ for closing devices using springs of a similar nature.
  
[List of Patents for class 124 subclass 8]    8Rotating about vertical axis:
 This subclass is indented under subclass 7.  Devices in which a mechanical throwing arm is rotated about a vertical axis by means of a spring, usually clay target throwing devices.

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43,for the clips or holders for clay targets on the throwing arm.

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273, Amusement Devices: Games,   subclasses 362+ for the clay targets, per se.
D22, Arms, Pyrotechnics, Hunting and Fishing Equipment,   subclasses 113+ for designs for targets.
  
[List of Patents for class 124 subclass 9]    9Automatically varied throwing angle:
 This subclass is indented under subclass 8.  Devices, in which the angle at which the projectile is thrown is varied automatically, usually for the purpose of introducing an element of uncertainty.
  
[List of Patents for class 124 subclass 10]    10PINCH:
 This subclass is indented under the class definition.  Devices in which a pinching or squeezing force is applied, usually to curved surfaces of a projectile.
  
[List of Patents for class 124 subclass 16]    16SPRING:
 This subclass is indented under the class definition.  Devices in which the impelling force is the action of a spring applied either directly or through a plunger or similar means to the projectile. Includes devices impelled by a spring for sliding projectiles off a smooth plate.

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66+,for projecting devices in which a spring drives a plunger which creates a quantity of compressed air, in which the air is the impelling agent for the projectile.

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267, Spring Devices,   especially subclasses 69 , 70, and 71 for spring devices of general application.
  
[List of Patents for class 124 subclass 17]    17Elastic band:
 This subclass is indented under subclass 16.  Devices in which the impelling spring is a band or strip of elastic material, usually rubber.

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35,for trigger and releasing mechanism for this type of projector in which the elastic band drives the projectile directly.
37+,for devices in which the elastic band drives a plunger which in turn drives the projectile.
  
[List of Patents for class 124 subclass 18]    18Self-projected band:
 This subclass is indented under subclass 17.  Devices, in which the elastic propelling spring is also itself the projectile.
  
[List of Patents for class 124 subclass 19]    19Repeating:
 This subclass is indented under subclass 18.  Devices, having provision for releasing a plurality of self-projected elastic bands in succession.

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72,for a repeating projector using fluid pressure.
  
[List of Patents for class 124 subclass 20.1]    20.1Having handle (e.g., crotch type slingshot):
 This subclass is indented under subclass 17.  Device including an elastic projector attached to the end of an extension from a handle and so arranged as to be capable of propelling a projectile through space.
(1) Note. This subclass also includes handles having multiple elastic projects which are separately attached to ends of a bifurcated extension, e.g., a common slingshot.
  
[List of Patents for class 124 subclass 20.2]    20.2Magazine handle:
 This subclass is indented under subclass 20.1.  Device in which the portion of the device adapted for being grasped has means for storing additional projectiles.
  
[List of Patents for class 124 subclass 20.3]    20.3Arrow or dart projector:
 This subclass is indented under subclass 20.1.  Handle having an elastic band specifically adapted to project an elongated member having a tipped end and a fletched end adapted for stabilizing its flight.
  
[List of Patents for class 124 subclass 21]    21Guided projectile:
 This subclass is indented under subclass 17.  Devices, in which the starting path of the missile is directed through a tubular barrel or along a grooved track or the equivalent thereof.

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26+,for similar devices using springs other than elastic bands as the projecting force.
  
[List of Patents for class 124 subclass 22]    22Dart or arrow projector:
 This subclass is indented under subclass 21.  Devices, in which the structure is peculiarly adapted to the projection by elastic bands of long-shafted projectiles, such as darts or arrows.

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23.1+,for bows and the like.
26+,for projectors similar to those in this subclass, but using springs other than elastic bands.
  
[List of Patents for class 124 subclass 23.1]    23.1Bow:
 This subclass is indented under subclass 16.  Device in which the straightening of a bowed elongated spring provides the projecting force.

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35.1,for a trigger or releasiong mechanism for a bowstring.
86+,for an archery projector element.
  
[List of Patents for class 124 subclass 24.1]    24.1Having projectile guide:
 This subclass is indented under subclass 23.1.  Device, having some means for directing the initial path of a projectile along a desired trajectory.

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22,for similar devices using the contracting force of an elastic member as the propelling force for a dart or arrow.
  
[List of Patents for class 124 subclass 25]    25Crossbow:
 This subclass is indented under subclass 24.  Devices, in which the guide for the projectile is an elongated member at right angles to the bow spring. These are the devices commonly known as crossbows.

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21+,for similar devices, having two rigid cross arms, with the propelling force provided by elastic bands.
26,for similar devices in which the propelling force is provided by other types of springs.
  
[List of Patents for class 124 subclass 25.5]    25.5Having projectile supply:
 This subclass is indented under subclass 24.1.  A bow having a projectile guide, having support means for holding one or more quarrels in ready reserve, e.g., a quiver.
(1) Note. The quarrels in the ready reserve are in addition to and separate from any such projectile being held in or on the bow in a state of readiness.
(2) Note. The term quarrel, as used herein, includes, but is not limited to including such terms as bolt, shaft, arrow, and dart.
  
[List of Patents for class 124 subclass 25.6]    25.6Compound bow:
 This subclass is indented under subclass 23.1.  Apparatus in which the bow has either (1) a fixed or variable mechanical advantage means for decreasing the force required to hold the bow at full draw, or (2) means for accelerating the projectile during launch at an increasing rate.

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900,for specific pulley structure.
  
[List of Patents for class 124 subclass 25.7]    25.7Having projectile supply:
 This subclass is indented under subclass 23.1.  A bow, having support means for holding one or more arrows in ready reserve, e.g., a quiver.
(1) Note. The arrows in the ready reserve are in addition to and separate from any such projectile being held in or on the bow in a state of readiness.
(2) Note. The term arrow, as used herein, includes, but is not limited to including such terms as bolt, shaft, quarrel, and dart.

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25.5,for the combination of a projectile guide and a quiver.
  
[List of Patents for class 124 subclass 26]    26Guided projectile:
 This subclass is indented under subclass 16.  Devices, in which the starting path of the projectile is directed along a desired path, usually by means of a tubular barrel or grooved track or the equivalent thereof. This includes devices in which the projectile travels along an internal guide.

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37+,for the trigger and releasing mechanism for this type of projector.
45+,for the magazine structure for these projectors.
  
[List of Patents for class 124 subclass 27]    27Gun type:
 This subclass is indented under subclass 26.  Devices, having the appearance of a firearm or piece of ordnance, and having an actual barrel for guiding the projectile and a trigger for releasing the projectile.

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2,for similar devices, which explode a cap, as well as expel a projectile.

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273, Amusement Devices: Games,   subclasses 348+ , particularly subclasses 355+, 357, and 405 for projectors of this type combined in a shooting gallery, or with target structure.
  
[List of Patents for class 124 subclass 28]    28Converted firearm:
 This subclass is indented under subclass 27.  Devices, in which an actual firearm or piece of ordnance is converted into a spring projector by the use of some temporary converting structure. Includes the converting structure, per se. In many cases the projecting structure acts only to expel means to mark a target adjacent the muzzle of the firearm or piece of ordnance, and the marking device is not intended to completely leave the projector.

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58,for an adapter for converting a firearm into a fluid-pressure gun.

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434, Education and Demonstration,   subclasses 11+ for devices for teaching the handling of firearms, in which no projection of a missile or marking device takes place.
  
[List of Patents for class 124 subclass 29]    29Mounted:
 This subclass is indented under subclass 27.  Devices, which are supported or mounted on some fixed or movable structure, as distinguished from devices to be carried in the hand or supported by the human body.

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42, Firearms,   subclass 55 for toy cannons, used only for firing caps, but having similar mounting means.
89, Ordnance,   for mounting or supporting means for actual pieces of ordnance.
  
[List of Patents for class 124 subclass 31]    31Trigger or releasing mechanism:
 This subclass is indented under subclass 80.  Devices for releasing the force which impels or throws the projectile.
(1) Note. Trigger mechanisms limited to their application to a specific type of projector have not been cross referenced here, and should be searched with the type of projector to which they are limited. For example, trigger mechanism for air pressure projectors, such as those in this class, subclasses 11+ consisting usually of valve operating means, has not been cross referenced here unless obviously capable of more general application.

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41+,for devices to release the projectile itself from its holding or carrying means.

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74, Machines Element or Mechanism,   subclass 2 , for tripping mechanism in general.
  
[List of Patents for class 124 subclass 32]    32Electrical:
 This subclass is indented under subclass 31.  Devices, in which some electrical device is used.
(1) Note. For electric firing devices for firearms and ordnance, see Class 42, Firearms, subclass 84, and Class 89, Ordnance, subclasses 28.05+.

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77,for an electrically actuated valve in a fluid pressure projector.
  
[List of Patents for class 124 subclass 33]    33Chance operated:
 This subclass is indented under subclass 31.  Devices, in which an element of chance is introduced, usually to make the time at which the release takes place uncertain or unpredictable.
  
[List of Patents for class 124 subclass 34]    34Remote:
 This subclass is indented under subclass 31.  Devices for releasing the propelling force from a location remote from the actual projector.
  
[List of Patents for class 124 subclass 35.1]    35.1Cord or band:
 This subclass is indented under subclass 31.  Trigger or release mechanism, particularly adapted to release a flexible cord or elastic band from a stressed state to either transfer or provide the force to impel a projectile.

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19,for the release of a series or succession of elastic bands which propel themselves through the air.
  
[List of Patents for class 124 subclass 35.2]    35.2Bow lock or archery trigger for compound or long bow:
 This subclass is indented under subclass 35.1.  Device, wherein the release means is particularly adapted to be grasped by an archer and to permit a smooth, controlled, repeatable mechanized release of the bow string when shooting an arrow.
  
[List of Patents for class 124 subclass 36]    36Swinging arm release:
 This subclass is indented under subclass 31.  Devices for releasing a swinging arm which throws or impels a projectile.
  
[List of Patents for class 124 subclass 37]    37Plunger release:
 This subclass is indented under subclass 31.  Devices and mechanism, for releasing a plunger which is driven by a spring or other means to impel a projectile.
  
[List of Patents for class 124 subclass 38]    38Variable force:
 This subclass is indented under subclass 37.  Devices in which the force with which the plunger moves may be varied. For example, the releasing mechanism may be caused to operate upon a different point or notch on the plunger.
  
[List of Patents for class 124 subclass 39]    39Continuous firing:
 This subclass is indented under subclass 37.  Devices for projecting a succession of missiles, as long as the mechanism is operated or until the supply in the projector is exhaused. Usually a resetting of the impelling plunger is alternated with the release.
  
[List of Patents for class 124 subclass 40]    40Safety lock:
 This subclass is indented under subclass 31.  Devices for preventing the premature discharge or impelling of the projectile.

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42, Firearms,   subclass 70 for safety locks on firearms.
  
[List of Patents for class 124 subclass 41.1]    41.1Projectile holder or carrier:
 This subclass is indented under subclass 80.  Apparatus specifically adapted for positioning or transporting a projectile in association with the projector while the combination is in a ready-to-fire state.
(1) Note. A projectile holder or carrier may also include a trigger or lock in association therewith.

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25+,for crossbows, per se.
31+,for devices for releasing the projecting force.
  
[List of Patents for class 124 subclass 42]    42Disk:
 This subclass is indented under subclass 41.  Devices, particularly adapted to hold or carry projectiles of disk shape.
  
[List of Patents for class 124 subclass 43]    43Disk target clip or carrier:
 This subclass is indented under subclass 42.  Devices, where the projectiles are targets usually of clay or other easily frangible material. Includes devices to release the projectile at the desired point.
  
[List of Patents for class 124 subclass 44]    44Boomerang:
 This subclass is indented under subclass 41.  Devices, particularly adapted to carry or hold projectiles of shapes commonly known as boomerangs.
  
[List of Patents for class 124 subclass 44.5]    44.5For a longbow or compound bow:
 This subclass is indented under subclass 41.1.  Projectile holder or carrier, particularly adapted for holding or positioning the unlocked portion of an elongated projectile adjacent the projector prior to release of the projectile, e.g., an arrow rest.
(1) Note. Crossbows are excluded from this subclass.
  
[List of Patents for class 124 subclass 44.6]    44.6Magnetic restraint:
 This subclass is indented under subclass 41.1.  Projectile holder or carrier, wherein a magnet is used to position or retain a projectile prior to firing.
  
[List of Patents for class 124 subclass 44.7]    44.7Fluid overcomes restraining force:
 This subclass is indented under subclass 41.1.  Projectile holder or carrier, wherein a pressurized fluid is used to overpower the positioning or retaining means and thereby fire the projectile.
(1) Note. The pressurized fluid may be produced by actuating a plunger or it may be released from a pressure vessel.
  
[List of Patents for class 124 subclass 45]    45Magazine:
 This subclass is indented under subclass 80.  Devices for holding or carrying a supply of projectiles in or on the projecting devices, usually in such a way that they are fed automatically into position to be thrown or impelled. The relation of the magazine structure to such other parts of the projector as the projectile guiding barrel, may be set forth provided those other elements are recited or described only to show the arrangement or relationship of the magazine.

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42, Firearms,   subclasses 49+ for magazines on firearms.
221, Article Dispensing,   appropriate subclasses for article dispensing not otherwise provided for, and especially subclasses 208+ for such dispensers incorporating discharge assistant means. See the Notes to the definitions of Class 221 for the disposition of other related disclosure.
227, Elongated-Member-Driving Apparatus,   subclasses 107+ for combined apparatus for positioning a member, e.g., a nail, in alignment with a driver, and for applying such member to work.
312, Supports: Cabinet Structure,   subclasses 35+ for cabinet structure broadly, for holding articles of various types similar to projectiles.
  
[List of Patents for class 124 subclass 46]    46Disk target:
 This subclass is indented under subclass 45.  Devices, particularly adapted to hold or carry a supply of disk targets.
  
[List of Patents for class 124 subclass 47]    47Gravity fed:
 This subclass is indented under subclass 46.  Devices, in which the feeding of the projectiles to the projector takes place by the action of gravity.

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49,for gravity fed magazines in general.
  
[List of Patents for class 124 subclass 48]    48Rotary:
 This subclass is indented under subclass 45.  Devices, in which the magazine is rotated step by step, supplying a projectile at each step in its rotation.
  
[List of Patents for class 124 subclass 49]    49Gravity fed:
 This subclass is indented under subclass 45.  Devices, in which the feeding of the projectiles takes place by the action of gravity.

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47,for gravity fed magazines particularly adapted for use with disk targets.
  
[List of Patents for class 124 subclass 50]    50Having cut-off:
 This subclass is indented under subclass 49.  Devices, in which the continuous feeding of projectiles is prevented by some means which permits them to pass into position only at a certain desired period or position of the other parts of the projector. This cut-off must be something other than the driving or impelling member of the projector.
  
[List of Patents for class 124 subclass 51.1]    51.1Mechanical projectile feed:
 This subclass is indented under subclass 45.  Subject matter, in which a projectile is moved from a magazine to the ready-to-fire position by means of a chute, ramp, conveyor, linkage, or other mechanical means.

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