Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4537536 | Process and apparatus of constructing a water tight underground pile wall | Tohru Kawai | 1985-08-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4537536 | Process and apparatus of constructing a water tight underground pile wall | Tohru Kawai | 1985-08-27 |