Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4471479 | Circuit arrangement for time-division multiplex telecommunication exchange systems comprising multiplex lines whose time channels serve partially for message connections and partially for the transmission of signaling information | — | 1984-09-11 |
| 4467470 | Circuit arrangement for T.D.M. telecommunication exchange system, comprising T.D.M. lines whose time channels serve partially for message connections and partially for the transmission of signalling information | — | 1984-08-21 |