Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747481 | Drag member of flight conveyer | Alexandr G. Levin, Igor V. Spivak | 1988-05-31 |
| 4566587 | Angle scraper chain face conveyor | Evgeny I. Kiselev, Alexandr G. Levin, Valentin I. Kutovoi, Jury F. Tverezy, Igor V. Spivak | 1986-01-28 |