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Wilhelm Schumann
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Tubingen, DE
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last 30 patents
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Patent Grant
Polymeric hydrogenation catalysts, the production thereof and their...
Patent number
4,419,490
Issue date
Dec 6, 1983
Heyl & Co. Chemisch-Pharmazeutische Fabrik
Ernst Bayer
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL