Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4493966 | Internal mandrel used in an operation of butt joining two lengths of tubing by welding | Bruno J. M. de Sivry, Michel Jegousse, Yves Le Hir | 1985-01-15 |
| 4410210 | Retaining grippers | Bruno J. M. de Sivry, Olivier R. Anselme, Meichel J. Jegousse, Yves Le Hir, Daniel Josien | 1983-10-18 |
| 4370541 | Electron beam chamber for butt welding pipes | Bruno J. M. de Sivry, Claude Carsac, Jean-Pierre Hamon, Michel Fuzeau | 1983-01-25 |
| 4368374 | Vacuum chamber for electron beam butt welding of pipes | Bruno J. M. de Sivry, Claude Carsac, Jean-Pierre Hamon, Michel Fuzeau | 1983-01-11 |