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US2399721A
|
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Geneva movement
|
|
US2378682A
|
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Ventilating system for motionpicture projectors
|
|
US2320064A
|
|
Oil-relieved geneva movement
|
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US2269429A
|
|
Wheel mounting
|
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US2301011A
|
|
Electrode feeding mechanism
|
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US2313317A
|
|
Intermittent movement assembly
|
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US2246972A
|
|
Framing mechanism and shutter compensator
|
|
US2246971A
|
|
Aperture plate
|
|
US2246970A
|
|
Film presser pad assembly
|
|
US2204884A
|
|
Film gate
|
|
US2242388A
|
|
Reflector adjusting mechanism for projection lamps
|
|
US2168697A
|
|
Electrode feeding mechanism
|
|
US2211364A
|
|
Motion picture projector
|
|
US2229237A
|
|
Shutter for motion picture machines
|
|
US2194585A
|
|
Motion picture projector
|
|
US2211363A
|
|
Lubricating system for motion picture projectors
|
|
US2171643A
|
|
Transformer-rectifier assembly
|
|
US2241179A
|
|
Projection lamp
|
|
US2101638A
|
|
Ventilating system for arc lamps
|
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US2014877A
|
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Dust and heat shielded projector
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