Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4607889 | Shield tunnel boring machine | Hakumi Hagimoto, Yutaka Kashima, Norio Kondo | 1986-08-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4607889 | Shield tunnel boring machine | Hakumi Hagimoto, Yutaka Kashima, Norio Kondo | 1986-08-26 |