Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |