Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4525834 | Service integrated digital transmission system | Manfred Welzenbach | 1985-06-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4525834 | Service integrated digital transmission system | Manfred Welzenbach | 1985-06-25 |