Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4981051 | Planetary precession speed changing device | Arnold E. Bor-Ramensky, Nikolai I. Kukin, Svetlana V. Kudryashova, Vladimir N. Ivanov, Vladimir K. Skalnov | 1991-01-01 |