Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832022 | Cryogenic ultrasonic scalpel | Gennady I. Tjulkov, Boris I. Alperovich, Ljutsia M. Paramonova, Alexandr I. Paramonov | 1989-05-23 |
| 4823790 | Cryogenic-and-ultrasonic scalpel | Boris I. Alperovich, Ljutsia M. Paramonova, Gennady I. Tjulkov, Alexandr I. Paramonov | 1989-04-25 |