Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821943 | Device for welding inside a tube of small diameter | Jean P. Gaudin | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821943 | Device for welding inside a tube of small diameter | Jean P. Gaudin | 1989-04-18 |