Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4637476 | Percussive action machine for making holes in the ground | Konstantin Stepanovich Gurkov, Alexandr D. Kostylev, Ivan P. Leonov, Vladimir V. Klimashko | 1987-01-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4637476 | Percussive action machine for making holes in the ground | Konstantin Stepanovich Gurkov, Alexandr D. Kostylev, Ivan P. Leonov, Vladimir V. Klimashko | 1987-01-20 |