Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5725338 | Drill bit having a hemispherical head with an evolutive cut | Maurice Jean Cabaret, Daniel Marcel Eugene Lavocat, Jean-Pierre Leboulanger, Michel Lebrun, Francois Masson +2 more | 1998-03-10 |