Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534540 | Gate valve | Boris F. Bragin, Alexandr S. Kolomiets, Felix D. Markuntovich, Evgeny P. Olofinsky, Petr V. Gladky +2 more | 1985-08-13 |
| 4505452 | Gate valve | Boris F. Bragin, Felix D. Markuntovich, Evgeny P. Olofinsky | 1985-03-19 |