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Fribourg, CH
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last 30 patents
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Patent Grant
Process for the production of a photographic color image by the sil...
Patent number
4,391,884
Issue date
Jul 5, 1983
Ciba-Geigy AG
Armin Meyer
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process for the production of masked positive color images by the s...
Patent number
4,310,617
Issue date
Jan 12, 1982
Ciba-Geigy AG
Herbert Mollet
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process for crosslinking hydrophilic colloids
Patent number
3,958,050
Issue date
May 18, 1976
Ciba-Geigy AG
Thomas Stauner
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...