Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976051 | Rotary trench excavator | Evgeny P. Kovalev, June V. Trubakov, Vladimir N. Shpektorov, Iosif N. Shpektorov | 1990-12-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976051 | Rotary trench excavator | Evgeny P. Kovalev, June V. Trubakov, Vladimir N. Shpektorov, Iosif N. Shpektorov | 1990-12-11 |