Ralf Grimmer

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Rodenbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Flotation process for mechanical pulp using a surface active agent
- Patent number 5,554,258
- Issue date Sep 10, 1996
- Degussa Aktiengesellschaft
- Hans U. Suess
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE