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Knut Graff
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Hattingen, DE
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last 30 patents
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Patent Grant
Aqueous coating compositions, a process for their preparation and m...
Patent number
4,880,867
Issue date
Nov 14, 1989
501 Herberts Gesellschaft mit Beschrankter
Armin Gobel
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...