Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856021 | Electric direct-current scrap-melting furnace | Jean Davene | 1989-08-08 |
| 4821284 | Scrap-melting process and electric furnace for carrying out the process | Georges J. Davene | 1989-04-11 |
| 4805186 | Process for the continuous melting of scrap in an electric direct-current furnace and electric furnace for carrying out the process | Jean Davene | 1989-02-14 |