Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4782493 | Gas discharge tube with hollow cathode for metal vapor laser | Margarita G. Grozeva, Ivan Angelov | 1988-11-01 |
| 4635271 | Gas laser discharge tube with copper halide vapors | Nikolay K. Vutshkov, Dimo N. Astadjov | 1987-01-06 |