Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813619 | Disintegrator having grinding chamber with rotors including carrying disk with grinding wheels concentrically arranged thereon | Alexei N. Tjumanok, Yaan V. Tamm, Valdeko V. Loopere | 1989-03-21 |