Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4325917 | Method and apparatus for producing sapphire tubes | Beniamin A. Tumasian, Leonid P. Egorov, Lev M. Zatulovsky, Petr M. Chaikin, Efim A. Freiman +4 more | 1982-04-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4325917 | Method and apparatus for producing sapphire tubes | Beniamin A. Tumasian, Leonid P. Egorov, Lev M. Zatulovsky, Petr M. Chaikin, Efim A. Freiman +4 more | 1982-04-20 |