Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799256 | Telecommunication signalling arrangement | Gunther Seidel, Heinrich belhack, Russel D. Homer | 1989-01-17 |
| 4754480 | Circuit arrangement for telecommunication switching systems connected to line concentrator sub-exchanges by connecting channels | Gerhard Renz, Guenther Seidel, Heinrich belhack, Russell Homer | 1988-06-28 |