Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4786899 | Circuit arrangement for PCM telecommunication facilities | Rolf Grabenhorst, Peter Kueffer, Josef Birlmeier, Gerhard Prey | 1988-11-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4786899 | Circuit arrangement for PCM telecommunication facilities | Rolf Grabenhorst, Peter Kueffer, Josef Birlmeier, Gerhard Prey | 1988-11-22 |