Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873521 | Address administration unit of a multi-processor central control unit of a communications switching system | Klaus Dietrich, Hans Hauer | 1989-10-10 |
| 4860333 | Error protected central control unit of a switching system and method of operation of its memory configuration | Rudolf Bitzinger, Walter Engl, Siegfried Humml | 1989-08-22 |