Claus R. Engel

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Waldorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing nitrocellulose-based carbon black concentrates...
- Patent number 4,615,852
- Issue date Oct 7, 1986
- Degussa Aktiengesellschaft
- Claus R. Engel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...