Werner Streit

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Ludwigshafen, DT

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Patents Grantslast 30 patents

Information Patent Grant
Nitrogenous condensation products used as retention aids in paperma...
- Patent number 4,066,494
- Issue date Jan 3, 1978
- BASF Aktiengesellschaft
- Emil Scharf
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE