Otto Sanger
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E. Leitz Photographic Patents by Otto Sanger
- 1937 SEP 29 - MOTION PICTURE CAMERA with Helmut Becker and Heinrich Broschke.
- 1938 OCT 28 - PHOTOGRAPHIC VIEW FINDER (for Frank Dumur)
- 1939 JUL 08 - EXPOSURE METER FOR PHOTOGRAPHIC APPARATUS with Helmut Becker and Heinrich Broschke
- 1958 FEB 19 - PHOTOGRAPHIC EXPOSURE METER with Heinrich Broschke and Ludwig Leitz
- 1960 JUL 08 - MULTI-SCALE LIGHT METER with Hans-Georg Flach
