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Bernd Holthusen
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Hamburg, DE
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last 30 patents
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Patent Grant
Circuit arrangement for controlling the exposure time of reproducti...
Patent number
4,349,272
Issue date
Sep 14, 1982
Dr. Boger Duplomat Apparate KG (GmbH & Co.)
Bernd Holthusen
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Grant
Reproduction cameras and priming exposure devices therefor
Patent number
4,185,914
Issue date
Jan 29, 1980
Dr. Boger Photosatz GmbH
Bernd Holthusen
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY