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Marly, CH
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last 30 patents
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Patent Grant
Process for the preparation of a solid adduct of sulfuric acid and...
Patent number
4,879,413
Issue date
Nov 7, 1989
Ciba-Geigy AG
Hansjorg Buser
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Grant
Method for processing photographic silver dye-bleach materials and...
Patent number
4,366,232
Issue date
Dec 28, 1982
Ciba-Geigy Ltd.
Hansjorg Buser
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY