Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4658913 | Hydropneumatic percussive tool | Ivan A. Yantsen, Orest G. Savchak, Alexandr B. Klok, Tolgat M. Zhanabaev, Mechislav-Valentinas K. Pakshtas +5 more | 1987-04-21 |
| 4505340 | Hydropneumatic percussive tool | Ivan A. Yantsen, Orest G. Savchak, Alexandr B. Klok, Tolgat M. Zhanabaev, Mechislav-Valentinas K. Pakshtas +5 more | 1985-03-19 |