Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4670884 | Rotating carbon or graphite electrode column to be used both in open- and submerged-arc furnaces | Italo Letizia | 1987-06-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4670884 | Rotating carbon or graphite electrode column to be used both in open- and submerged-arc furnaces | Italo Letizia | 1987-06-02 |