Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4536621 | Dual talk path key telephone | Henry Bergen, Sedat Zaimi, Vincenzo Castellano | 1985-08-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4536621 | Dual talk path key telephone | Henry Bergen, Sedat Zaimi, Vincenzo Castellano | 1985-08-20 |