Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314519 | Ballast pumping system | Shigeto Yunoki | 1982-02-09 |
| 4313390 | Tanker construction | Shigeto Yunoki | 1982-02-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314519 | Ballast pumping system | Shigeto Yunoki | 1982-02-09 |
| 4313390 | Tanker construction | Shigeto Yunoki | 1982-02-02 |