Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4762263 | Small-sized gas pressure welding machine for rails with two separate mechanisms for punching-shearing excess metal | Hirotsugu Oishibashi, Muneyuki Ohara, Kenzo Hagiwara, Hisashi Yoshida, Kunio Kitagawa | 1988-08-09 |