Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839888 | Digital time-division multiplex switch-based telephone subscriber connection system | Jean-Claude Fuhrer | 1989-06-13 |
| 4486879 | Method and apparatus for mixing low-frequency signals transmitted via different time slots towards the same telephone receiver set | — | 1984-12-04 |