Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4191494 | Apparatus of effecting buoyancy on submerged articles | Koji Nakamura, Masaru Ogata | 1980-03-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4191494 | Apparatus of effecting buoyancy on submerged articles | Koji Nakamura, Masaru Ogata | 1980-03-04 |