Werner Schlapp
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E. Leitz Photographic Patents by Werner Schlapp
- 1977 NOV 11 - SELECTIVE COUPLING SYSTEM FOR CAMERAS with Willi Wiessner
- 1983 SEP 30 - PHOTOGRAPHIC OBJECTIVE WITH A FASTENING DEVICE with Willi Wiessner
- 1983 OCT 04 - PHOTOGRAPHIC OBJECTIVE WITH AUTOMATIC DIAPHRAGM with Werner Wiessner
