Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336424 | Circuit arrangement for monitoring operating conditions of direct current devices | — | 1982-06-22 |
| 4327253 | Circuit arrangement for consecutively monitoring operating conditions of direct current devices | — | 1982-04-27 |
| 4320260 | Circuit arrangement for determining the connection condition of a subscriber line in a telecommunications network | — | 1982-03-16 |
| 4309766 | Arrangement for subscriber circuits utilizing digital time division multiplex telecommunication installations and particularly for PCM local exchanges | Hermann Monat | 1982-01-05 |