Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4221506 | Pneumatic conveying apparatus for reloading bulk materials | Max M. Shapunov, Mikhail A. Koppel, Felix M. Frumkin | 1980-09-09 |
| 4203688 | Method of unloading bulk materials from vessels | Max M. Shapunov, Mikhail A. Koppel, Felix M. Frumkin, Antal Gabor | 1980-05-20 |