Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4753120 | Friction impulse transmission mechanism | Sofka G. Popova | 1988-06-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4753120 | Friction impulse transmission mechanism | Sofka G. Popova | 1988-06-28 |