Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5795539 | Method for cooling graphite electrodes used for metal melting and refining in an electric arc furnace and a ladle | Norio Nagai | 1998-08-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5795539 | Method for cooling graphite electrodes used for metal melting and refining in an electric arc furnace and a ladle | Norio Nagai | 1998-08-18 |