CH528193A
(en )
1972-09-15
Circuit arrangement for a telecommunications, in particular telephone switching system
CH488360A
(en )
1970-03-31
Distribution frame for telecommunications, in particular telephone systems
AT317309B
(en )
1974-08-26
Circuit arrangement for an electronic switching network in telecommunications, in particular telephone switching systems
AT300052B
(en )
1972-07-10
Circuit arrangement for centrally fed subscriber stations in telecommunications systems
AT311426B
(en )
1973-11-12
Circuit arrangement for telecommunications systems, in particular telephone exchange systems
AT304647B
(en )
1973-01-10
Frame for telecommunications, in particular telephone systems
CH411045A
(en )
1966-04-15
Subscriber circuit for telecommunications, in particular telephone systems
AT301625B
(en )
1972-09-11
Relayless subscriber circuit for telecommunications, in particular telephone systems
CH474932A
(en )
1969-06-30
Signaling method for PCM telecommunication systems, in particular telephone switching systems
AT300050B
(en )
1972-07-10
Circuit arrangement for telecommunications, in particular telephone systems
AT281128B
(en )
1970-05-11
Circuit arrangement for telecommunications switching systems, in particular telephone branch exchange systems
AT309538B
(en )
1973-08-27
Circuit arrangement for telecommunications systems, in particular telephone exchange systems
AT246233B
(en )
1966-04-12
Circuit arrangement for telecommunications, in particular telephone systems
CH397785A
(en )
1965-08-31
Relayless subscriber circuit for telecommunications, in particular telephone systems
CH536586A
(en )
1973-04-30
Circuit arrangement for telecommunication, in particular telephone switching systems, with time division multiple operation
AT290633B
(en )
1971-06-11
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT304649B
(en )
1973-01-10
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT320031B
(en )
1975-01-27
Distribution frame for telecommunications, in particular telephone systems
CH488353A
(en )
1970-03-31
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
AT271576B
(en )
1969-06-10
Subscriber circuit for telecommunications, in particular teleprinter and telephone systems
CH530744A
(en )
1972-11-15
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT294198B
(en )
1971-11-10
Circuit arrangement for telecommunications, in particular telephone switching systems
CH519284A
(en )
1972-02-15
Circuit arrangement for telecommunications, in particular telephone exchanges, with time-division multiple switching
AT274053B
(en )
1969-09-10
Circuit arrangement for telecommunications, in particular telephone systems