| Patents for H04Q 11 - Selecting arrangements for multiplex systems (43,004) | |
|---|---|
| 02/1976 | |
| 02/03/1976 | US3936614 PBX ground start trunk interface for station carrier systems |
| 01/1976 | |
| 01/27/1976 | US3935391 Time division multiplex switching system |
| 01/20/1976 | US3934099 Bias, feedback and network arrangements for hybrid circuits |
| 01/20/1976 | US3934091 Automatic gain compensation in time division switching system |