Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848488 | Method and device for adjusting the path of a drilling tool fixed to the end of a set of rods | Andre Cendre | 1989-07-18 |
| 4844178 | Drilling device having a controlled path | Andre Cendre | 1989-07-04 |
| 4836303 | Device for the remote adjustment of the relative orientation of two sections of a column | Pierre Morin | 1989-06-06 |
| 4821817 | Actuator for an appliance associated with a ducted body, especially a drill rod | Andre Cendre | 1989-04-18 |