Christian Ries

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Cologne, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process and aqueous compositions for treating metal surfaces
- Patent number 4,761,189
- Issue date Aug 2, 1988
- Gerhard Collardin GmbH
- Raschad Mady
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...