Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450207 | Circumferential-weld reinforcing device | Ludovic Villatte | 2002-09-17 |
| 6446321 | Method for producing pipes to be connected in a double-wall piping system and implementing machine | Mathieu Rivier | 2002-09-10 |