AT289210B -
Circuit arrangement for telecommunication systems, in particular telephone systems, with electronically controlled dialing devices
- Google Patents
Circuit arrangement for telecommunication systems, in particular telephone systems, with electronically controlled dialing devices
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Publication number
AT289210B
AT289210BAT178969AAT178969AAT289210BAT 289210 BAT289210 BAT 289210BAT 178969 AAT178969 AAT 178969AAT 178969 AAT178969 AAT 178969AAT 289210 BAT289210 BAT 289210B
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Publication of AT289210BpublicationCriticalpatent/AT289210B/en
H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04M—TELEPHONIC COMMUNICATION
H04M3/00—Automatic or semi-automatic exchanges
H04M3/08—Indicating faults in circuits or apparatus
H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
AT178969A1968-02-221969-02-21
Circuit arrangement for telecommunication systems, in particular telephone systems, with electronically controlled dialing devices
AT289210B
(en)
Circuit arrangement for telecommunication switching systems, in particular telephone switching systems, with control devices constructed in the manner of a cross field