CH522339A - Schaltungsanordnung zur Überwachung von zentralen Wahlempfängern in Fernmelde-, insbesondere Fernsprechanlagen
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Schaltungsanordnung zur Überwachung von zentralen Wahlempfängern in Fernmelde-, insbesondere Fernsprechanlagen
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Publication number
CH522339A
CH522339ACH1394570ACH1394570ACH522339ACH 522339 ACH522339 ACH 522339ACH 1394570 ACH1394570 ACH 1394570ACH 1394570 ACH1394570 ACH 1394570ACH 522339 ACH522339 ACH 522339A
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Application filed by Int Standard Electric CorpfiledCriticalInt Standard Electric Corp
Publication of CH522339ApublicationCriticalpatent/CH522339A/de
H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
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Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
CH1394570A1969-09-241970-09-21Schaltungsanordnung zur Überwachung von zentralen Wahlempfängern in Fernmelde-, insbesondere Fernsprechanlagen
CH522339A
(de)