Francois J. Duboys

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Le Plessis Robinson, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for the treatment by chemical conversion of substrates of z...
- Patent number 4,670,066
- Issue date Jun 2, 1987
- Compagnie Francaise de Produits Industriels
- Joseph Schapira
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Processes of phosphating surfaces of iron and of steel with manganese
- Patent number 4,311,536
- Issue date Jan 19, 1982
- Compagnie Francaise de Produits Industriels
- Joseph Schapira
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...