Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330074 | Apparatus for automatic welding of bevelled tubes | Norbert Poirier | 1982-05-18 |
| 4213555 | Method and apparatus for automatic welding of bevelled tubes | Norbert Poirier | 1980-07-22 |