Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691788 | Lateral hole boring method and apparatus | Shoji Yoshida, Etsuji Kosaka, Toshimichi Ikeda, Mikio Aoyama, Takeo Iida | 1987-09-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691788 | Lateral hole boring method and apparatus | Shoji Yoshida, Etsuji Kosaka, Toshimichi Ikeda, Mikio Aoyama, Takeo Iida | 1987-09-08 |