CH329942A
(en )
1958-05-15
Circuit arrangement for free selection processes in telecommunication systems, in particular telephone systems
AT191473B
(en )
1957-08-26
Machine breakers for setting step-by-step rotary selectors in telecommunication systems, especially telephone systems
CH324915A
(en )
1957-10-15
Circuit arrangement for telecommunications, in particular telephone systems
AT191940B
(en )
1957-09-25
Motor selectors 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
CH336453A
(en )
1959-02-28
Motor selectors for telecommunications, 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
AT193946B
(en )
1957-12-10
Circuit arrangement for relay selectors in telecommunication systems, in particular telephone systems
CH351306A
(en )
1961-01-15
Automatic switchgear, in particular for dialing levels in telecommunications systems
CH356498A
(en )
1961-08-31
Double coincidence circuit for telecommunication systems, in particular telephone systems
CH317711A
(en )
1956-11-30
Multiple switches 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
CH354489A
(en )
1961-05-31
Circuit arrangement for relay line selectors in telecommunications, in particular telephone systems
AT194916B
(en )
1958-01-25
Dialing device for telecommunication systems, in particular for telephone dialing systems
CH347230A
(en )
1960-06-30
Dialing device for telecommunication systems, in particular for telephone dialing systems
CH358840A
(en )
1961-12-15
Coin-operated machine for telecommunications, in particular telephone traffic
AT198804B
(en )
1958-07-25
Coordinate switch for switching devices in telecommunications systems, in particular telephone systems
AT193433B
(en )
1957-11-25
Circuit arrangement for telecommunications, in particular telephone systems
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
AT173737B
(en )
1953-01-26
Rotary selector for telecommunication systems, in particular telephone systems
CH305581A
(en )
1955-02-28
Circuit arrangement for telecommunication systems with relay selectors, in particular telephone systems.
CH305582A
(en )
1955-02-28
Circuit arrangement for telecommunications, in particular telephone systems with relay selectors.
AT178381B
(en )
1954-05-10
Rotary selector for telecommunications, in particular telephone systems