Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4785898 | Device for making holes in soil | Alexandr D. Kostylev, Alexei D. Terskov, Vladimir D. Plavskikh | 1988-11-22 |
| 4697647 | Reversible percussive action machine | Alexandr D. Kostylev, Vladimir D. Plavskikh, Alexei D. Terskov, Igor I. Reznikov, Vladimir I. Tarasenko | 1987-10-06 |