Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4291774 | Rock-breaking implement for percussive machines | Boris V. Sudnishnikov, Veniamin V. Kamensky, Sergei K. Tupitsyn | 1981-09-29 |
| 4280573 | Rock-breaking tool for percussive-action machines | Boris V. Sudnishnikov, Veniamin V. Kamensky, Sergei K. Tupitsyn, Konstantin K. Tupitsyn | 1981-07-28 |
| 4209070 | Air-operated self-propelling rotary-percussive downhole drill | Boris V. Sudnishnikov, Veniamin V. Kamensky, Sergei K. Tupitsyn, Boris V. Nazarov | 1980-06-24 |