Issued Patents 1989
Showing 1–1 of 1 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 |
Showing 1–1 of 1 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 |