Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4279966 | Pressure resistant square panel | Shigeru Yamada, Akira Sato | 1981-07-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4279966 | Pressure resistant square panel | Shigeru Yamada, Akira Sato | 1981-07-21 |