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Eduard Knecht
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Basel, CH
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last 30 patents
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Patent Grant
Carboxylic acid dianhydrides based on trimellitic anhydride
Patent number
4,286,097
Issue date
Aug 25, 1981
Ciba-Geigy Corporation
Jurgen Habermeier
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Trimellitic acid ester and its use in a protective lacquer based on...
Patent number
4,226,755
Issue date
Oct 7, 1980
Ciba-Geigy Corporation
Eduard Knecht
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...