Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351489 | Refiner disk | Lev N. Laptev, Sergei S. Legotsky, Viadimir A. Semenovsky, Abram B. Litvinov, Alexei I. Kondrashov | 1982-09-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351489 | Refiner disk | Lev N. Laptev, Sergei S. Legotsky, Viadimir A. Semenovsky, Abram B. Litvinov, Alexei I. Kondrashov | 1982-09-28 |