Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819741 | Reversiele percussion device | Alexei D. Terskov, Vladimir D. Plavskikh, Alexandr D. Kostylev, Nikolai Grigorievich Nazarov, Nikolai P. Chepurnoi +1 more | 1989-04-11 |
| 4570723 | Machine for driving holes in the ground | Alexandr D. Kostylev, Vladimir D. Plavskikh, Alexei D. Terskov, Nikolai P. Chepurnoi, Igor I. Reznikov +1 more | 1986-02-18 |
| 4398609 | Apparatus for sinking wells in the ground | Vladimir D. Plavskikh, Alexei D. Terskov, Anatoly V. Sukhushin, Nikolai P. Chepurnoi, Evgeny N. Cherednikov | 1983-08-16 |