Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821817 | Actuator for an appliance associated with a ducted body, especially a drill rod | Andre Cendre | 1989-04-18 |
| 4245708 | Blade stabilizer provided with at least one fluid passage having a venturi effect, in particular for use in combination with a drill bit | Henri Cholet | 1981-01-20 |