CH329942A
(en )
1958-05-15
Circuit arrangement for free selection processes in telecommunication systems, in particular telephone systems
CH324915A
(en )
1957-10-15
Circuit arrangement for telecommunications, in particular telephone systems
CH315053A
(en )
1956-07-15
Circuit arrangement in telecommunication systems, in particular telephone systems
AT193433B
(en )
1957-11-25
Circuit arrangement 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
CH355483A
(en )
1961-07-15
Identification device for telecommunications, in particular telephone systems
CH397785A
(en )
1965-08-31
Relayless subscriber circuit for telecommunications, in particular telephone systems
CH317711A
(en )
1956-11-30
Multiple switches for telecommunication systems, in particular telephone systems
AT175612B
(en )
1953-07-25
Circuit arrangement for telecommunications, in particular telephone dialing systems
AT246233B
(en )
1966-04-12
Circuit arrangement for telecommunications, in particular telephone systems
AT192968B
(en )
1957-11-11
Circuit arrangement for telecommunication systems, in particular telephone systems with dial-up operation
AT191940B
(en )
1957-09-25
Motor selectors for telecommunications, in particular telephone systems
CH356498A
(en )
1961-08-31
Double coincidence circuit for telecommunication systems, in particular telephone systems
CH314163A
(en )
1956-05-31
Selector switches for telecommunication systems, in particular telephone systems
AT197442B
(en )
1958-04-25
Circuit arrangement for direction selector in telecommunication systems, in particular telephone systems
CH363380A
(en )
1962-07-31
Circuit arrangement for establishing connections in telecommunication systems, in particular telephone systems
CH313882A
(en )
1956-05-15
Circuit arrangement for telecommunications systems, in particular for telephone systems with dialer operation
AT193946B
(en )
1957-12-10
Circuit arrangement for relay selectors in telecommunication systems, in particular telephone systems
AT198326B
(en )
1958-06-25
Circuit arrangement for voters in telecommunication systems, in particular telephone systems
AT210924B
(en )
1960-09-10
Semi-electronic system for telecommunication systems, in particular automatic telephone systems
AT185410B
(en )
1956-04-25
Circuit arrangement for telephone extension systems with dialer operation
CH305582A
(en )
1955-02-28
Circuit arrangement for telecommunications, in particular telephone systems with relay selectors.
CH353407A
(en )
1961-04-15
Circuit arrangement for an electronic selector for detouring in telecommunications, in particular telephone systems
AT191474B
(en )
1957-08-26
Circuit arrangements for signaling via the test wire in telecommunication systems, in particular telephone systems
CH354489A
(en )
1961-05-31
Circuit arrangement for relay line selectors in telecommunications, in particular telephone systems