Gerhard Troemel

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Persch, DE

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Patents Grantslast 30 patents

Information Patent Grant
Polyamines containing acid groups that are useful in papermaking
- Patent number 4,166,002
- Issue date Aug 28, 1979
- Bayer Aktiengesellschaft
- Wolfgang Lehmann
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE