Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4733731 | Air-operated reversible percussive action machine | Khaim B. Tkach, Alexandr D. Kostylev, Konstantin K. Tupitsyn, Vladimir I. Tarasenko, Igor I. Reznikov | 1988-03-29 |
| 4629008 | Reversible percussive action machine | Alexandr D. Kostylev, Vladimir D. Plavskikh, Alexei D. Terskov, Nikolai P. Chepurnoi, Igor I. Reznikov +1 more | 1986-12-16 |
| 4440240 | Method of making holes in the soil and apparatus for performing this method | Alexandr D. Kostylev, Vladimir P. Gileta, Vladimir A. Grigoraschenko, Khaim B. Tkach, Vladimir A. Bakunin +12 more | 1984-04-03 |