CH551727A -
CIRCUIT ARRANGEMENT FOR TELEPHONE SWITCHING SYSTEMS, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WITH MULTISTAGE COUPLING AREAS
- Google Patents
CIRCUIT ARRANGEMENT FOR TELEPHONE SWITCHING SYSTEMS, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WITH MULTISTAGE COUPLING AREAS
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Publication number
CH551727A
CH551727ACH1270672ACH1270672ACH551727ACH 551727 ACH551727 ACH 551727ACH 1270672 ACH1270672 ACH 1270672ACH 1270672 ACH1270672 ACH 1270672ACH 551727 ACH551727 ACH 551727A
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Application filed by Siemens AgfiledCriticalSiemens Ag
Publication of CH551727ApublicationCriticalpatent/CH551727A/en
H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
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Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Exchange Systems With Centralized Control
(AREA)
CH1270672A1971-09-241972-08-29
CIRCUIT ARRANGEMENT FOR TELEPHONE SWITCHING SYSTEMS, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS, WITH MULTISTAGE COUPLING AREAS
CH551727A
(en)
CIRCUIT ARRANGEMENT FOR TELEPHONE SUBSCRIBER CONNECTION CABLES WITH TWO SYMMETRIC DOUBLE CABLES FOR ADDITIONAL CHARACTER TRANSMISSION, IN PARTICULAR FOR IMAGE TRANSMISSION.
Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, for four-wire connection through switching via coupling fields