Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4302636 | Subscriber's electronic line equipment comprising a two-wire-four-wire conversion circuit for a telephone exchange | Alian Dumont, Guy Oeillet | 1981-11-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4302636 | Subscriber's electronic line equipment comprising a two-wire-four-wire conversion circuit for a telephone exchange | Alian Dumont, Guy Oeillet | 1981-11-24 |