Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966023 | Staged tool for boring a hole in an element by axial penetration of the tool | Regis Ruiz, J. Pierre Ravier | 1990-10-30 |
| 4643826 | Filtration apparatus comprising endless belts passing between clamping plates | — | 1987-02-17 |
| 4575612 | Arc welding guide tube with non-adhesive tip | — | 1986-03-11 |