CH355186A
(en )
1961-06-30
Acoustic signaling device, in particular for telephone sets
CH319034A
(en )
1957-01-31
Switching device, in particular for periodic switching
CH329942A
(en )
1958-05-15
Circuit arrangement for free selection processes in telecommunication systems, in particular telephone systems
AT198802B
(en )
1958-07-25
Drive unit for number switches in telecommunication systems, in particular telephone systems
CH350689A
(en )
1960-12-15
Drive unit for number switches in telecommunication systems, in particular telephone systems
CH355483A
(en )
1961-07-15
Identification device for telecommunications, in particular telephone systems
CH353408A
(en )
1961-04-15
Circuit arrangement for subscriber station in telecommunication systems, in particular telephone systems, with keypad selection
CH358837A
(en )
1961-12-15
Transmission switching system, in particular for telephone purposes
CH356498A
(en )
1961-08-31
Double coincidence circuit for telecommunication systems, in particular telephone systems
CH357441A
(en )
1961-10-15
Switching network for messaging
CH412998A
(en )
1966-05-15
Centrally controlled switching system, in particular for telephone purposes
CH315053A
(en )
1956-07-15
Circuit arrangement in telecommunication systems, in particular telephone systems
AT191940B
(en )
1957-09-25
Motor selectors for telecommunications, in particular telephone systems
AT198326B
(en )
1958-06-25
Circuit arrangement for voters in telecommunication systems, in particular telephone systems
CH317711A
(en )
1956-11-30
Multiple switches for telecommunication systems, in particular telephone systems
CH384042A
(en )
1964-11-15
Electromagnetic-optical indicator, in particular for telephone exchange systems
AT198804B
(en )
1958-07-25
Coordinate switch for switching devices in telecommunications systems, in particular telephone systems
CH415761A
(en )
1966-06-30
Switching device for telecommunication systems, in particular telephone systems
AT202196B
(en )
1959-02-10
Pulse generator, in particular number switch for telephones u. like
CH355187A
(en )
1961-06-30
Pulse generators, in particular number switches for telephones
AT197442B
(en )
1958-04-25
Circuit arrangement for direction selector in telecommunication systems, in particular telephone systems
AT199230B
(en )
1958-08-25
Protective housing for electrical systems, in particular telecommunication systems
CH411046A
(en )
1966-04-15
Centrally controlled switching system, in particular for telephone purposes
CH397785A
(en )
1965-08-31
Relayless subscriber circuit for telecommunications, in particular telephone systems
CH336453A
(en )
1959-02-28
Motor selectors for telecommunications, in particular telephone systems