Helmut Becker

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E. Leitz Photographic Patents by Helmut Becker

1935 DEC 20 - PHOTOGRAPHIC CAMERA
1936 MAR 18 - PHOTOGRAPHIC FILM CAMERA
1937 FEB 18 - FILM-GUIDING MECHANISM (motion pictures)
1937 MAR 23 - TRANSMISSION MECHANISM FOR PHOTOGRAPHIC CAMERAS
1937 APR 21 - VIEW FINDER FOR PHOTOGRAPHIC CAMERAS

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