Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887948 | Deformable washer, particularly for predetermining the minimum force needed for tightening a nut or a screw | — | 1989-12-19 |
| 4834431 | Clamp for joining two metal pipes | Michel Andre | 1989-05-30 |
| 4803758 | Clamp and method of producing same | — | 1989-02-14 |