Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796798 | Method of and apparatus for continuous production of seam-welded metal tubing | Koji Kadota, Shigetomo Matsui, Hiroyuki Matsumura, Hisao Hasegawa, Hiromichi Nakamura +3 more | 1989-01-10 |