Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5239535 | Arrangement for testing the transmission properties of subscriber line modules or digital terminal equipment of a communication system connectible thereto | Detlef Von Reusner | 1993-08-24 |
| 4539683 | Method and apparatus for checking analog-to-digital converters, digital-to-analog converters, or telecommunications transmission links which contain such converters | Helmuth Hahn, Werner Cordt | 1985-09-03 |