Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5301762 | Drilling tool fitted with self-sharpening cutting edges | — | 1994-04-12 |
| 5293946 | Divergent fluid nozzle for drilling tool | Bernard Ponineau | 1994-03-15 |
| 5282512 | Drilling tool with rotating conical rollers | Patrick Toutain | 1994-02-01 |