Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137394 | Hollow steel pile, manufacturing method and pile driving method | Masaharu Hashimoto, Seiji Satou | 1992-08-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137394 | Hollow steel pile, manufacturing method and pile driving method | Masaharu Hashimoto, Seiji Satou | 1992-08-11 |