Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821284 | Scrap-melting process and electric furnace for carrying out the process | Robert A. Janiak | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821284 | Scrap-melting process and electric furnace for carrying out the process | Robert A. Janiak | 1989-04-11 |