CH502043A
(en )
1971-01-15
Telecommunications, in particular telephone systems, for time division multiplexing
CH528193A
(en )
1972-09-15
Circuit arrangement for a telecommunications, in particular telephone switching system
AT315920B
(en )
1974-06-25
Distribution strip for telecommunication systems, in particular telephone systems
CH488360A
(en )
1970-03-31
Distribution frame for telecommunications, in particular telephone systems
AT305384B
(en )
1973-02-26
Separating and switching strips for telecommunication systems, in particular telephone systems
AT274054B
(en )
1969-09-10
Circuit arrangement for centrally controlled telecommunications systems, in particular telephone switching systems
AT304647B
(en )
1973-01-10
Frame for telecommunications, in particular telephone systems
CH474932A
(en )
1969-06-30
Signaling method for PCM telecommunication systems, in particular telephone switching systems
CH413923A
(en )
1966-05-31
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
CH536586A
(en )
1973-04-30
Circuit arrangement for telecommunication, in particular telephone switching systems, with time division multiple operation
AT320031B
(en )
1975-01-27
Distribution frame for telecommunications, in particular telephone systems
AT281136B
(en )
1970-05-11
Time division multiplex telecommunications, in particular telephone switching systems
AT304649B
(en )
1973-01-10
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
CH488353A
(en )
1970-03-31
Number switches for telecommunications equipment, in particular telephone equipment
CH482371A
(en )
1969-11-30
Switching processes for telecommunications switching systems, in particular telephone branch exchanges
CH530744A
(en )
1972-11-15
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT300050B
(en )
1972-07-10
Circuit arrangement for telecommunications, in particular telephone systems
AT246233B
(en )
1966-04-12
Circuit arrangement for telecommunications, in particular telephone systems
AT290633B
(en )
1971-06-11
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT308203B
(en )
1973-06-25
Coordinate switch for telecommunication systems, in particular telephone switching systems
AT294930B
(en )
1971-12-10
Arrangement for telecommunications switching systems, in particular telephone systems
CH502742A
(en )
1971-01-31
Time division multiplex switching system, in particular for PCM time division multiplex telecommunication systems
AT301625B
(en )
1972-09-11
Relayless subscriber circuit for telecommunications, in particular telephone systems
CH470116A
(en )
1969-03-15
Number switches for telecommunications equipment, in particular telephone equipment
AT312058B
(en )
1973-12-10
Circuit arrangement for matrix-shaped switching devices in telecommunications systems, in particular telephone exchange systems