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Class Information
Number: 352/173
Name: Optics: motion pictures > Camera and/or projector drive mechanisms > With reverse feed
Description: Subject matter in which means are provided to cause the film strip to be advanced in a direction opposite to its normal direction. Such that the motion sequence comprises pictures representing time intervals with reverse relationship to the actual action sequence.


Patents under this class:

Patent Number Title Of Patent Date Issued
5074657 Timing adjustment for reverse movie photography Dec. 24, 1991
4576455 Dual motor reversible drive film magazine Mar. 18, 1986
4542865 Automatic film rewinding device Sep. 24, 1985
4150886 Motion picture projector system Apr. 24, 1979
4141629 Indication of scenes on a projector programmed on the basis of scenes Feb. 27, 1979
4116551 Projector auto rewind mechanism Sep. 26, 1978
4116550 Projector reset-auto stop mechanism Sep. 26, 1978
4033680 Rapid film rewind mechanism Jul. 5, 1977
4033681 Forward-reverse multi speed film transport mechanism Jul. 5, 1977
4022525 Intermittent film drive for motion picture projector May. 10, 1977
3993404 Self-threading motion picture projector Nov. 23, 1976
3966313 Forward-reverse projector mechanism Jun. 29, 1976
3947187 Photographic film drive system employing inertia dumper Mar. 30, 1976



 
 
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