Francois David

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Aulnoye Aymeries, FR

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Patents Grantslast 30 patents

Information Patent Grant
Anti-seizing surface coating for assembly means for tubes by thread...
- Patent number 5,253,902
- Issue date Oct 19, 1993
- Vallourec Industries
- Daniel Petelot
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...