Rolf Sommerfeld

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Kempen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Sealing, caulking and protective shielding composition of thermopla...
- Patent number 4,204,986
- Issue date May 27, 1980
- Bergwerksverband GmbH
- Ingo Romey
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...