Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4698462 | Trolleybus current collector system enabling common line passing | Emanuil S. Gaydarov, Koytcho Y. Russev, Ivan T. Stoilov | 1987-10-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4698462 | Trolleybus current collector system enabling common line passing | Emanuil S. Gaydarov, Koytcho Y. Russev, Ivan T. Stoilov | 1987-10-06 |