Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5583492 | Method and apparatus for monitoring inside a manhole | Yutaka Nakanishi, Shinichi Nakagawa, Yasuyuki Hishida, Ryoji Matsubara, Kimiharu Kanemaru | 1996-12-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5583492 | Method and apparatus for monitoring inside a manhole | Yutaka Nakanishi, Shinichi Nakagawa, Yasuyuki Hishida, Ryoji Matsubara, Kimiharu Kanemaru | 1996-12-10 |