AT260310B
(en )
1968-02-26
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems with switching networks
CH435387A
(en )
1967-05-15
Circuit arrangement for telecommunications, in particular telephone systems, with central billing
AT257701B
(en )
1967-10-25
Circuit arrangement for telecommunication, in particular telephone systems with two-way connections
CH413923A
(en )
1966-05-31
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
AT257699B
(en )
1967-10-25
Circuit arrangement for control purposes in telecommunication systems with coupling fields, in particular in telephone systems
CH315053A
(en )
1956-07-15
Circuit arrangement in telecommunication systems, in particular telephone systems
CH445574A
(en )
1967-10-31
Circuit arrangement for telecommunications switching systems, in particular telephone systems with switching fields
AT246233B
(en )
1966-04-12
Circuit arrangement for telecommunications, in particular telephone systems
CH453437A
(en )
1968-06-14
Circuit arrangement for telecommunication switching systems, in particular telephone systems
CH363380A
(en )
1962-07-31
Circuit arrangement for establishing connections in telecommunication systems, in particular telephone systems
CH397785A
(en )
1965-08-31
Relayless subscriber circuit for telecommunications, in particular telephone systems
CH411045A
(en )
1966-04-15
Subscriber circuit for telecommunications, in particular telephone systems
AT284966B
(en )
1970-10-12
Circuit arrangement for power supply for telecommunication systems, in particular telephone systems
AT191940B
(en )
1957-09-25
Motor selectors for telecommunications, in particular telephone systems
CH426948A
(en )
1966-12-31
Circuit arrangement for telecommunication, in particular telephone systems with marked adjustable selectors
AT290633B
(en )
1971-06-11
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems
CH521667A
(en )
1972-04-15
Circuit arrangement for telecommunications systems, in particular telephone exchanges, with cross-field control devices
CH470116A
(en )
1969-03-15
Number switches for telecommunications equipment, in particular telephone equipment
AT274053B
(en )
1969-09-10
Circuit arrangement for telecommunications, in particular telephone systems
AT266227B
(en )
1968-11-11
Circuit arrangement for centrally controlled telecommunication systems, in particular telephone systems, with two-way connections
CH331074A
(en )
1958-06-30
Circuit arrangement for keyboard selection in telecommunication systems, in particular telephone systems
AT266929B
(en )
1968-12-10
Circuit arrangement for coupling arrangements in telecommunication systems, in particular telephone systems
CH473516A
(en )
1969-05-31
Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, with two-wire connection
AT294930B
(en )
1971-12-10
Arrangement for telecommunications switching systems, in particular telephone systems
AT197442B
(en )
1958-04-25
Circuit arrangement for direction selector in telecommunication systems, in particular telephone systems