Bernard Grellet

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42000 Saint-Etienne, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for improving the corrosion resistance of ferrous metal parts
- Patent number 4,448,611
- Issue date May 15, 1984
- Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement
- Bernard Grellet
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Surface treatment of parts of ferrous alloys
- Patent number 3,957,594
- Issue date May 18, 1976
- Bernard Grellet
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR