Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688420 | Low-hydrogen-type covered arc welding electrode for high strength CR-MO steels | Takeshi Nakagawa | 1997-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688420 | Low-hydrogen-type covered arc welding electrode for high strength CR-MO steels | Takeshi Nakagawa | 1997-11-18 |