CH528193A
(en )
1972-09-15
Circuit arrangement for a telecommunications, in particular telephone switching system
CH449715A
(en )
1968-01-15
Circuit arrangement for multi-level switching panels in telecommunication systems, in particular telephone systems
AT274054B
(en )
1969-09-10
Circuit arrangement for centrally controlled telecommunications systems, in particular telephone switching systems
AT305385B
(en )
1973-02-26
Coordinate multiple switches for telecommunication exchanges, in particular telephone dialing systems
AT308203B
(en )
1973-06-25
Coordinate switch for telecommunication systems, in particular telephone switching systems
CH482371A
(en )
1969-11-30
Switching processes for telecommunications switching systems, in particular telephone branch exchanges
CH413923A
(en )
1966-05-31
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
CH474932A
(en )
1969-06-30
Signaling method for PCM telecommunication 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
CH453437A
(en )
1968-06-14
Circuit arrangement for telecommunication switching systems, in particular telephone systems
AT304649B
(en )
1973-01-10
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT290633B
(en )
1971-06-11
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
CH521696A
(en )
1972-04-15
Circuit arrangement for telecommunications, in particular telephone switching systems with time-division multiple switching
CH488353A
(en )
1970-03-31
Number switches for telecommunications equipment, in particular telephone equipment
AT281136B
(en )
1970-05-11
Time division multiplex telecommunications, in particular telephone switching systems
AT289207B
(en )
1971-04-13
Switching arrangement for intermediate distributors used in telecommunications switching systems, in particular telephone switching systems
AT294930B
(en )
1971-12-10
Arrangement for telecommunications switching systems, in particular telephone systems
CH534991A
(en )
1973-03-15
Selection circuit, especially for telecommunications switching systems
CH530744A
(en )
1972-11-15
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT312058B
(en )
1973-12-10
Circuit arrangement for matrix-shaped switching devices in telecommunications systems, in particular telephone exchange systems
CH519284A
(en )
1972-02-15
Circuit arrangement for telecommunications, in particular telephone exchanges, with time-division multiple switching
CH518656A
(en )
1972-01-31
Circuit arrangement for telecommunications, in particular telephone switching systems with time-division multiple switching
AT305384B
(en )
1973-02-26
Separating and switching strips for telecommunication systems, in particular telephone systems
AT294198B
(en )
1971-11-10
Circuit arrangement for telecommunications, in particular telephone switching systems
CH532348A
(en )
1972-12-31
Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, with four-wire connection through-connection