Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623173 | Screw joint coupling for oil pipes | Masao Handa, Tomohiko Tokuya, Mitsuaki Hori, Hidenori Yasuoka, Toshio Sato +2 more | 1986-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623173 | Screw joint coupling for oil pipes | Masao Handa, Tomohiko Tokuya, Mitsuaki Hori, Hidenori Yasuoka, Toshio Sato +2 more | 1986-11-18 |