Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890298 | Troposcatter modem receiver | — | 1989-12-26 |
| 4881226 | Digital interface of an integrated subscriber line interface circuit | Robert Lechner, Hans-Werner Rudolf, Harald Stader, Norbert Wingerath, Christopher C. A. Priest +7 more | 1989-11-14 |