|
US2373936A
|
|
Light shield for cameras
|
|
US2286526A
|
|
Optical system for cameras and the like
|
|
US2303781A
|
|
Projector mechanism
|
|
US2127197A
|
|
Camera
|
|
US2028484A
|
|
Motion picture projector
|
|
US2028485A
|
|
Optical system and automatic control for the same
|
|
US1990684A
|
|
Intermittent movement mechanism
|
|
US1938950A
|
|
Optical system for projectors
|
|
US1955160A
|
|
Film handling mechanism
|
|
US1930498A
|
|
Optical system for motion picture photography
|
|
US1980463A
|
|
Film-handling mechanism
|
|
US1870664A
|
|
Optical system
|
|
US1949893A
|
|
Optical system
|
|
US1897098A
|
|
Motion picture projector
|
|
US1857578A
|
|
Motion picture film
|
|
US1949892A
|
|
Apparatus for projecting motion pictures
|
|
US1890764A
|
|
Method of producing motion pictures
|
|
US1961471A
|
|
Film guide construction
|
|
US1897097A
|
|
Film handling mechanism
|
|
US1890172A
|
|
Film handling mechanism
|
