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Ulli Weinberg
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Roth, DE
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last 30 patents
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Patent Grant
Projection screen arrangement
Patent number
4,416,511
Issue date
Nov 22, 1983
Reflecta GmbH Foto Film Projektion
Ulli Weinberg
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Projection screen assembly
Patent number
4,312,568
Issue date
Jan 26, 1982
Messrs. Reflecta GmbH Foto Film Projektion
Ulli Weinberg
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY