Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5211510 | Propulsion method of pipe to be buried without soil discharge and an excavator | Koichi Kimura | 1993-05-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5211510 | Propulsion method of pipe to be buried without soil discharge and an excavator | Koichi Kimura | 1993-05-18 |