Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4451926 | Composite electrode for arc furnace | Nathan S. Tanner | 1984-05-29 |
| 4417344 | Composite electrode for arc furnace | Nathan S. Tanner | 1983-11-22 |
| 4416014 | Composite electrode for arc furnace | Nathan S. Tanner | 1983-11-15 |