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US4017167A
|
|
Intermittent movement with tandem cams
|
|
US3997251A
|
|
Magazine camera
|
|
US3343471A
|
|
Camera viewfinder
|
|
US3236581A
|
|
Camera viewfinder
|
|
US3250362A
|
|
Workpiece handling apparatus
|
|
US3224656A
|
|
Kinetograph movement driving mechanism
|
|
US3224148A
|
|
Method and apparatus for producing a reflective rotating shutter
|
|
US3224830A
|
|
Differential drive for cinematographs
|
|
US3211068A
|
|
Exposure controlling system for cameras
|
|
US3198102A
|
|
Photographic camera with an adjustable semi-reflector for photographic film exposure
|
|
US2947215A
|
|
Compensating film warpage in projectors
|
|
US2504342A
|
|
Noise shield for hearing aids
|
|
US2311769A
|
|
Range controlled speed indicator
|
|
US2258903A
|
|
Variable focus system for optical instruments
|
|
US1962783A
|
|
Ventilator
|
|
US1830370A
|
|
Tripod clamp
|
|
CA597573A
|
|
Boat carrier
|
|
CA826970A
|
|
Method and apparatus for processing tubing
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