Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821267 | Monitoring apparatus for monitoring the operating condition of transmission facilities of communications transmission technology | Volker Schmidt | 1989-04-11 |
| 4419634 | Oscillator whose frequency is controllable by a current variation | Kalixt von Winnicki | 1983-12-06 |