Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365763 | Device for shaping of helical fins on the outer wall of a tube | Charles Marcon | 1994-11-22 |
| 5339669 | Apparatus and process permitting the cold forming of grooves on the wall of a revolving part | Jean-Paul Lespour, Charles Marcon | 1994-08-23 |