Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4243832 | Electric arc furnaces | Charles H. Parsons | 1981-01-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4243832 | Electric arc furnaces | Charles H. Parsons | 1981-01-06 |