Berhard Kotschy

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Mettmann, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the chemical treatment of metal surfaces and installati...
- Patent number 6,171,409
- Issue date Jan 9, 2001
- Henkel Kommanditgesellschaft auf Aktien
- Matthias Hamacher
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...