Werner Wiessner

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E. Leitz Photographic Patents by Werner "Willi" Wiessner

1962 JAN 12 - CAMERA WITH BUILT-IN EXPOSURE METER see above
1977 NOV 09 - INTERCHANGEABLE LENS FOR SLR-CAMERAS HAVING TTL LIGHT METERING with Werner Schlapp
1977 NOV 11 - SELECTIVE COUPLING SYSTEM FOR CAMERAS with Werner Schlapp
1983 SEP 30 - PHOTOGRAPHIC OBJECTIVE WITH A FASTENING DEVICE with Werner Schlapp
1983 OCT 04 - PHOTOGRAPHIC OBJECTIVE WITH AUTOMATIC DIAPHRAGM with Werner Schlapp

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