CH410069A
(en )
1966-03-31
Circuit arrangement for testing lines in telecommunication systems, in particular telephone systems
AT198801B
(en )
1958-07-25
Machine breaker for setting step-by-step rotary selectors in telecommunication systems, in particular telephone systems
CH361049A
(en )
1962-03-31
Electrical switch, in particular toggle switch
CH403873A
(en )
1965-12-15
Circuit arrangement for testing lines in telecommunication systems, in particular telephone systems
FR1178709A
(en )
1959-05-14
Communications switching system
CH353408A
(en )
1961-04-15
Circuit arrangement for subscriber station in telecommunication systems, in particular telephone systems, with keypad selection
AT191473B
(en )
1957-08-26
Machine breakers for setting step-by-step rotary selectors in telecommunication systems, especially telephone systems
CH358837A
(en )
1961-12-15
Transmission switching system, in particular for telephone purposes
FR1176819A
(en )
1959-04-16
Communications switching network
CH355483A
(en )
1961-07-15
Identification device for telecommunications, in particular telephone systems
CH351306A
(en )
1961-01-15
Automatic switchgear, in particular for dialing levels in telecommunications systems
FR1179110A
(en )
1959-05-21
Communications switching network
CH356498A
(en )
1961-08-31
Double coincidence circuit for telecommunication systems, in particular telephone systems
AT191940B
(en )
1957-09-25
Motor selectors for telecommunications, in particular telephone systems
AU219221B2
(en )
1957-08-22
Switch arrangement for routing selectors in remote signalling, especially telephone plants
CH363674A
(en )
1962-08-15
Telegraph subscriber station
CH358840A
(en )
1961-12-15
Coin-operated machine for telecommunications, in particular telephone traffic
AT190104B
(en )
1957-06-11
Circuit arrangement for setting line rotary selectors in telephone private branch exchanges
AT198804B
(en )
1958-07-25
Coordinate switch for switching devices in telecommunications systems, in particular telephone systems
CH354489A
(en )
1961-05-31
Circuit arrangement for relay line selectors in telecommunications, in particular telephone systems
AU2558857A
(en )
1957-08-22
Switch arrangement for routing selectors in remote signalling, especially telephone plants
DK107236C
(en )
1967-05-08
Distribution field for connecting switching means groups in a telecommunication system, in particular a telephony system.
AT196925B
(en )
1958-04-10
Circuit arrangement for memories in telecommunications, in particular telephone systems
CH352009A
(en )
1961-02-15
Circuit arrangement for memories in telecommunications, in particular telephone systems
CH443411A
(en )
1967-09-15
Circuit arrangement for monitoring telecommunication lines, in particular telephone lines