Hubert Vennschott

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Pforzheim-Buechenbronn, DE

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Patents Grantslast 30 patents

Information Patent Grant
Chromium-free conversion coating treatment of aluminum
- Patent number 5,584,946
- Issue date Dec 17, 1996
- Henkel Kommanditgesellschaft auf Aktien
- Uwe Karmaschek
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...