Issued Patents 1989
Showing 1–1 of 1 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 |
Showing 1–1 of 1 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 |