Optics: Motion Pictures Patents (Class 352)
- Cyclic motion pictures with sound (e.g., praxinoscopes (Class 352/2)
- Sound stages, methods and accessories (Class 352/3)
- Methods (Class 352/5)
- Selectively operable plural records, recorders or reproducers (Class 352/6)
- Sound allocation (Class 352/11)
- Picture and sound synchronizing (Class 352/12)
- With picture and sound control systems (Class 352/25)
- Common picture and sound record carrier systems (Class 352/26)
- Separate picture and sound carrier systems (Class 352/31)
- Housing and supports (Class 352/34)
- Reproducer and screen arrangements (Class 352/36)
- Picture and sound recorder carries (Class 352/37)
- With illumination control responsive to drive speed (Class 352/167)
- Having plural or interchangeable drives (Class 352/168)
- With single frame operation (Class 352/169)
- With indicating means (Class 352/170)
- With reverse feed (Class 352/173)
- With starting and/or stopping means (Class 352/174)
- With speed regulation or selection (Class 352/180)
- With feeding belt film engagement (Class 352/183)
- With continuous feed and intermittent film arresting means (Class 352/184)
- With film beater (Class 352/185)
- With reciprocating continuously driven carrier engaging sprocket (Class 352/186)
- With intermittently driven carrier-engaging sprocket (Class 352/187)
- With film engaging claws reciprocally driven to engage film (Class 352/191)
- With supporting structure (Class 352/197)
- Fluid pressure type (Class 352/222)
- With pressure rollers (Class 352/223)
- With edge guide (Class 352/224)
- With reciprocating pressure plate (Class 352/225)
- With removable aperture plate (Class 352/226)
- With pressure plate tension control (Class 352/227)
- With curved film plane (Class 352/228)
- With gate moving and/or holding structure (Class 352/229)
- With lens mounting (Class 352/231)
