Bernard Gilbert Roy

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Volgre, FR

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Patents Grantslast 30 patents

Information Patent Grant
Drill bit having a hemispherical head with an evolutive cut
- Patent number 5,725,338
- Issue date Mar 10, 1998
- Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "SNECMA"
- Maurice Jean Cabaret
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR