Helmut Becker: Difference between revisions
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Revision as of 16:31, 1 March 2012
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
