Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339941 | Method and apparatus for producing thick welded steel pipe | Tadaaki Taira, Toshio Ishihara, Hiromichi Itoshima, Takashi Kogawa | 1982-07-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339941 | Method and apparatus for producing thick welded steel pipe | Tadaaki Taira, Toshio Ishihara, Hiromichi Itoshima, Takashi Kogawa | 1982-07-20 |