Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222129 | Telephone charging signalling detector suitable for central office line interface circuits | Andre Bonvallet, Robert Girard | 1993-06-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222129 | Telephone charging signalling detector suitable for central office line interface circuits | Andre Bonvallet, Robert Girard | 1993-06-22 |