Helmut Pummer

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Forchtenstein, AU

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Patents Grantslast 30 patents

Information Patent Grant
Reaction products of a polyacrylamide formaldehyde, a secondary ami...
- Patent number 4,251,410
- Issue date Feb 17, 1981
- Sandoz Ltd.
- Bernard Danner
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE