Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5051032 | Method and apparatus for continuously excavating shaft and tunnel | Toshihiko Bessho, Kenichi Kaneko, Toshiaki Uehara, Hiroyuki Ito | 1991-09-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5051032 | Method and apparatus for continuously excavating shaft and tunnel | Toshihiko Bessho, Kenichi Kaneko, Toshiaki Uehara, Hiroyuki Ito | 1991-09-24 |