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[Search a list of Patent Appplications for class 74]  Class   74MACHINE ELEMENT OR MECHANISM
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   [List of Patents for class 74 subclass 1R]  1R           MISCELLANEOUS
    [List of Patents for class 74 subclass 1SS]  1SS           Subclass 1SS indent level is 1 High frequency vibratory devices
    [List of Patents for class 74 subclass 1.5]  1.5           ESCAPEMENTS
   [List of Patents for class 74 subclass 2]  2           AUTOMATIC OPERATION OR CONTROL (E.G., TRIPS)
   [List of Patents for class 74 subclass 3]  3           Subclass 3 indent level is 1 Speed controlled
    [List of Patents for class 74 subclass 3.2]  3.2           Subclass 3.2 indent level is 2 Valve gear trips (e.g., steam engine "Corliss" type)
   [List of Patents for class 74 subclass 3.5]  3.5           Subclass 3.5 indent level is 1 Retarded
    [List of Patents for class 74 subclass 3.52]  3.52           Subclass 3.52 indent level is 2 Plural, sequential, trip actuations
   [List of Patents for class 74 subclass 3.54]  3.54           Subclass 3.54 indent level is 2 Clock train
    [List of Patents for class 74 subclass 4]  4           Subclass 4 indent level is 1 Hit and miss
   [List of Patents for class 74 subclass 5R]  5R           GYROSCOPES
   [List of Patents for class 74 subclass 5.1]  5.1           Subclass 5.1 indent level is 1 With caging or parking means
    [List of Patents for class 74 subclass 5.12]  5.12           Subclass 5.12 indent level is 2 Rotor spin and cage release type
    [List of Patents for class 74 subclass 5.14]  5.14           Subclass 5.14 indent level is 2 And resetting means
    [List of Patents for class 74 subclass 5.2]  5.2           Subclass 5.2 indent level is 1 With gimbal lock preventing means
    [List of Patents for class 74 subclass 5.22]  5.22           Subclass 5.22 indent level is 1 Combined
   [List of Patents for class 74 subclass 5.34]  5.34           Subclass 5.34 indent level is 1 Multiple gyroscopes
    [List of Patents for class 74 subclass 5.37]  5.37           Subclass 5.37 indent level is 2 With rotor drives
   [List of Patents for class 74 subclass 5.4]  5.4           Subclass 5.4 indent level is 1 Gyroscope control
   [List of Patents for class 74 subclass 5.41]  5.41           Subclass 5.41 indent level is 2 Erecting
    [List of Patents for class 74 subclass 5.42]  5.42           Subclass 5.42 indent level is 3 By plural diverse forces
    [List of Patents for class 74 subclass 5.43]  5.43           Subclass 5.43 indent level is 3 By jet
    [List of Patents for class 74 subclass 5.44]  5.44           Subclass 5.44 indent level is 3 By weight
    [List of Patents for class 74 subclass 5.45]  5.45           Subclass 5.45 indent level is 3 By friction
    [List of Patents for class 74 subclass 5.46]  5.46           Subclass 5.46 indent level is 3 By magnetic field
    [List of Patents for class 74 subclass 5.47]  5.47           Subclass 5.47 indent level is 3 By motor torque
    [List of Patents for class 74 subclass 5.5]  5.5           Subclass 5.5 indent level is 2 Damping
   [List of Patents for class 74 subclass 5.6R]  5.6R           Subclass 5.6R indent level is 1 With pick off
    [List of Patents for class 74 subclass 5.6A]  5.6A           Subclass 5.6A indent level is 2 Optical
    [List of Patents for class 74 subclass 5.6B]  5.6B           Subclass 5.6B indent level is 2 Pneumatic
    [List of Patents for class 74 subclass 5.6C]  5.6C           Subclass 5.6C indent level is 2 Conducting liquid
    [List of Patents for class 74 subclass 5.6D]  5.6D           Subclass 5.6D indent level is 2 Electrical
    [List of Patents for class 74 subclass 5.6E]  5.6E           Subclass 5.6E indent level is 2 Electrical and magnetic
    [List of Patents for class 74 subclass 5.7]  5.7           Subclass 5.7 indent level is 1 With rotor drive
    [List of Patents for class 74 subclass 5.8]  5.8           Subclass 5.8 indent level is 1 Vertical gyroscopes
    [List of Patents for class 74 subclass 5.9]  5.9           Subclass 5.9 indent level is 1 Horizontal gyroscopes
    [List of Patents for class 74 subclass 5F]  5F           Subclass 5F indent level is 1 Flexure hinges for gyros
    [List of Patents for class 74 subclass 5.95]  5.95           Subclass 5.95 indent level is 1 Flywheel structure
   [List of Patents for class 74 subclass 6]  6           ENGINE STARTERS
   [List of Patents for class 74 subclass 7R]  7R           Subclass 7R indent level is 1 Automatic
    [List of Patents for class 74 subclass 7A]  7A           Subclass 7A indent level is 2 Separate power mesher
    [List of Patents for class 74 subclass 7B]  7B           Subclass 7B indent level is 2 Holders
    [List of Patents for class 74 subclass 7C]  7C           Subclass 7C indent level is 2 Clutch connection
    [List of Patents for class 74 subclass 7D]  7D           Subclass 7D indent level is 2 Worm and wheel
    [List of Patents for class 74 subclass 7E]  7E           Subclass 7E indent level is 2 Reduction gearing
    [List of Patents for class 74 subclass 8]  8           Subclass 8 indent level is 1 Radial meshing
    [List of Patents for class 74 subclass 9]  9           Subclass 9 indent level is 1 Cam operated
   [List of Patents for class 74 subclass 10R]  10R           SHAFT OPERATORS (RADIO TUNER TYPE)
   [List of Patents for class 74 subclass 10.1]  10.1           Subclass 10.1 indent level is 1 Preselected position
    [List of Patents for class 74 subclass 10.15]  10.15           Subclass 10.15 indent level is 2 Step by step
    [List of Patents for class 74 subclass 10.2]  10.2           Subclass 10.2 indent level is 2 Rotatable stop and projectable abutment
    [List of Patents for class 74 subclass 10.22]  10.22           Subclass 10.22 indent level is 2 Digital dial type
   [List of Patents for class 74 subclass 10.27]  10.27           Subclass 10.27 indent level is 2 Plural operator
   [List of Patents for class 74 subclass 10.29]  10.29           Subclass 10.29 indent level is 3 Cam and follower
   [List of Patents for class 74 subclass 10.31]  10.31           Subclass 10.31 indent level is 4 Adjustable cam
    [List of Patents for class 74 subclass 10.33]  10.33           Subclass 10.33 indent level is 5 Sliding operator
   [List of Patents for class 74 subclass 10.35]  10.35           Subclass 10.35 indent level is 4 Adjustable follower
    [List of Patents for class 74 subclass 10.37]  10.37           Subclass 10.37 indent level is 5 Sliding operator
    [List of Patents for class 74 subclass 10.39]  10.39           Subclass 10.39 indent level is 3 Rack and pinion
    [List of Patents for class 74 subclass 10.41]  10.41           Subclass 10.41 indent level is 2 With detent or clicker
    [List of Patents for class 74 subclass 10.45]  10.45           Subclass 10.45 indent level is 1 Plural shafts
   [List of Patents for class 74 subclass 10.5]  10.5           Subclass 10.5 indent level is 1 Plural speed
    [List of Patents for class 74 subclass 10.52]  10.52           Subclass 10.52 indent level is 2 Planetary
    [List of Patents for class 74 subclass 10.54]  10.54           Subclass 10.54 indent level is 2 Separate operators
    [List of Patents for class 74 subclass 10.6]  10.6           Subclass 10.6 indent level is 1 Cam and follower
    [List of Patents for class 74 subclass 10.7]  10.7           Subclass 10.7 indent level is 1 Tensioned flexible operator
   [List of Patents for class 74 subclass 10.8]  10.8           Subclass 10.8 indent level is 1 Gear drive
    [List of Patents for class 74 subclass 10.85]  10.85           Subclass 10.85 indent level is 2 Worm or screw
    [List of Patents for class 74 subclass 10.9]  10.9           Subclass 10.9 indent level is 1 Lever and linkage drive
    [List of Patents for class 74 subclass 10A]  10A           Subclass 10A indent level is 1 Remote control
   [List of Patents for class 74 subclass 813R]  813R           ROTARY MEMBER OR SHAFT INDEXING, E.G., TOOL OR WORK TURRET
    [List of Patents for class 74 subclass 814]  814           Subclass 814 indent level is 1 With safety device or drive disconnect
    [List of Patents for class 74 subclass 815]  815           Subclass 815 indent level is 1 With locating point adjusting
   [List of Patents for class 74 subclass 816]  816           Subclass 816 indent level is 1 Preselected indexed position
   [List of Patents for class 74 subclass 817]  817           Subclass 817 indent level is 2 Sequential
    [List of Patents for class 74 subclass 818]  818           Subclass 818 indent level is 3 Skip position
    [List of Patents for class 74 subclass 819]  819           Subclass 819 indent level is 3 Held by torque
    [List of Patents for class 74 subclass 820]  820           Subclass 820 indent level is 3 Geneva or multilated gear drive
    [List of Patents for class 74 subclass 821]  821           Subclass 821 indent level is 3 Velocity control
   [List of Patents for class 74 subclass 822]  822           Subclass 822 indent level is 3 Interlocked rotator and brake
   [List of Patents for class 74 subclass 823]  823           Subclass 823 indent level is 4 Diverse-type brakes
    [List of Patents for class 74 subclass 824]  824           Subclass 824 indent level is 5 With axially acting friction brake
    [List of Patents for class 74 subclass 825]  825           Subclass 825 indent level is 1 Plural operators or input drives
    [List of Patents for class 74 subclass 826]  826           Subclass 826 indent level is 1 With means to axially shift shaft
    [List of Patents for class 74 subclass 827]  827           Subclass 827 indent level is 1 Single revolution input effects desired fractional output
    [List of Patents for class 74 subclass 813C]  813C           Subclass 813C indent level is 1 Control means
    [List of Patents for class 74 subclass 813L]  813L           Subclass 813L indent level is 1 Locking means
   [List of Patents for class 74 subclass 11]  11           POWER TAKE-OFF
    [List of Patents for class 74 subclass 12]  12           Subclass 12 indent level is 1 Speedometer
   [List of Patents for class 74 subclass 13]  13           Subclass 13 indent level is 1 Wheel take-off
    [List of Patents for class 74 subclass 14]  14           Subclass 14 indent level is 2 Wheel bed type
    [List of Patents for class 74 subclass 15]  15           Subclass 15 indent level is 2 Supported pulley
    [List of Patents for class 74 subclass 15.2]  15.2           Subclass 15.2 indent level is 1 Plural take-off shafts
    [List of Patents for class 74 subclass 15.4]  15.4           Subclass 15.4 indent level is 1 With independent change speed gearing
   [List of Patents for class 74 subclass 15.6]  15.6           Subclass 15.6 indent level is 1 From shaft extension
    [List of Patents for class 74 subclass 15.63]  15.63           Subclass 15.63 indent level is 2 Prime mover shaft, e.g., crank shaft
    [List of Patents for class 74 subclass 15.66]  15.66           Subclass 15.66 indent level is 2 Change speed transmission shaft
    [List of Patents for class 74 subclass 15.69]  15.69           Subclass 15.69 indent level is 2 Vehicle propeller shaft
   [List of Patents for class 74 subclass 15.8]  15.8           Subclass 15.8 indent level is 1 Intermediate ends of power transmitting line
   [List of Patents for class 74 subclass 15.82]  15.82           Subclass 15.82 indent level is 2 Vehicle propulsion transmitting line
    [List of Patents for class 74 subclass 16]  16           POWER TABLES AND STANDS
    [List of Patents for class 74 subclass 17]  17           WASHER AND WRINGER
    [List of Patents for class 74 subclass 17.5]  17.5           FULL STROKE MECHANISM
    [List of Patents for class 74 subclass 17.8]  17.8           MOTION TRANSFER THROUGH IMPERFORATE FLEXIBLE SEAL
   [List of Patents for class 74 subclass 18]  18           FLEXIBLE SEALING DIAPHRAGM ATTACHED TO MOVING ROD AND TO CASING
    [List of Patents for class 74 subclass 18.1]  18.1           Subclass 18.1 indent level is 1 Pivoting or nutating rod
    [List of Patents for class 74 subclass 18.2]  18.2           Subclass 18.2 indent level is 1 Longitudinally reciprocating rod