Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346922 | Device for preventing leakage at pipe joints | Hisao Ohtsuga, Koji Uzawa, Susumu Sudo, Tomoyoshi Hirose, Masafumi Miyao +1 more | 1982-08-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346922 | Device for preventing leakage at pipe joints | Hisao Ohtsuga, Koji Uzawa, Susumu Sudo, Tomoyoshi Hirose, Masafumi Miyao +1 more | 1982-08-31 |