Hans Liedtke

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Nuremberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Quaternary 1,1-diphenyl-4-pyrrolidinium-2-butyne salts, a process f...
- Patent number 4,420,488
- Issue date Dec 13, 1983
- Ludwig Heumann & Co. GmbH
- Walter Liebenow
- C07 - ORGANIC CHEMISTRY