CH502043A
(en )
1971-01-15
Telecommunications, in particular telephone systems, for time division multiplexing
AT285689B
(en )
1970-11-10
Centrally controlled switching system for telecommunications, in particular telephone technology
CH528193A
(en )
1972-09-15
Circuit arrangement for a telecommunications, in particular telephone switching system
CH483171A
(en )
1969-12-15
Telecommunications system, in particular telephone exchange
CH467567A
(en )
1969-01-15
Circuit arrangement in telecommunications, in particular telephone switching systems
CH484580A
(en )
1970-01-15
Centrally controlled telecommunication system, in particular telephone switching system
CH468757A
(en )
1969-02-15
Scanning device for centrally controlled telecommunication systems, in particular telephone switching systems
AT281136B
(en )
1970-05-11
Time division multiplex telecommunications, in particular telephone switching systems
AT260310B
(en )
1968-02-26
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems with switching networks
AT305385B
(en )
1973-02-26
Coordinate multiple switches for telecommunication exchanges, in particular telephone dialing systems
CH474932A
(en )
1969-06-30
Signaling method for PCM telecommunication systems, in particular telephone switching systems
CH492370A
(en )
1970-06-15
Centrally controlled telecommunication switching, in particular telephone switching system
CH451255A
(en )
1968-05-15
Circuit arrangement for time division multiplexing, for telecommunications, in particular telephone purposes
CH490777A
(en )
1970-05-15
Telecommunications, in particular telephone systems
AT281128B
(en )
1970-05-11
Circuit arrangement for telecommunications switching systems, in particular telephone branch exchange systems
CH452010A
(en )
1968-05-15
Time-division multiplex switching system, in particular time-division multiplex telephone extension switching system
CH536586A
(en )
1973-04-30
Circuit arrangement for telecommunication, in particular telephone switching systems, with time division multiple operation
AT285690B
(en )
1970-11-10
Centrally controlled switching system for telecommunications, in particular telephone technology
CH411045A
(en )
1966-04-15
Subscriber circuit for telecommunications, in particular telephone systems
AT290633B
(en )
1971-06-11
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT285688B
(en )
1970-11-10
Centrally controlled telecommunication switching, in particular telephone switching system
CH519284A
(en )
1972-02-15
Circuit arrangement for telecommunications, in particular telephone exchanges, with time-division multiple switching
AT271575B
(en )
1969-06-10
Circuit arrangement for time division multiplex switching systems for telecommunications, in particular telephony technology
CH488364A
(en )
1970-03-31
Centrally controlled switching system for telecommunications, in particular telephone technology
CH473516A
(en )
1969-05-31
Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, with two-wire connection