Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660614 | Gas treatment of molten metals | Serge Lavoie, Ghyslain Dube, Robert Dumont | 1997-08-26 |
| 5656236 | Apparatus for gas treatment of molten metals | Robert Dumont | 1997-08-12 |
| 5593634 | Gas treatment of molten metals | Robert Dumont | 1997-01-14 |