Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6370122 | Method for monitoring and checking subscriber connections to ISDN | Iwan Nussbaumer, Charles Zehnder | 2002-04-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6370122 | Method for monitoring and checking subscriber connections to ISDN | Iwan Nussbaumer, Charles Zehnder | 2002-04-09 |