Wilfred Ribbing

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Heesternweg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of 4,4'-bis(4-aminophenoxy)-diphenyl su...
- Patent number 5,118,848
- Issue date Jun 2, 1992
- Huels Aktiengesellschaft
- Martin Bartmann
- C07 - ORGANIC CHEMISTRY