AT254277B -
Circuit arrangement for monitoring signal lines in telecommunication systems, in particular telephone systems, for their switching status
- Google Patents
Circuit arrangement for monitoring signal lines in telecommunication systems, in particular telephone systems, for their switching status
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Publication number
AT254277B
AT254277BAT362165AAT362165AAT254277BAT 254277 BAT254277 BAT 254277BAT 362165 AAT362165 AAT 362165AAT 362165 AAT362165 AAT 362165AAT 254277 BAT254277 BAT 254277B
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Publication date
Application filed by Siemens AgfiledCriticalSiemens Ag
Application grantedgrantedCritical
Publication of AT254277BpublicationCriticalpatent/AT254277B/en
AT362165A1964-04-241965-04-20
Circuit arrangement for monitoring signal lines in telecommunication systems, in particular telephone systems, for their switching status
AT254277B
(en)
Circuit arrangement for the central monitoring of timing circuits of several functional units in telecommunication systems, in particular telephone switching systems
Circuit arrangement for checking circuits and / or lines for their occupancy status in telecommunication systems, in particular telephone switching systems
Circuit arrangement for wide-spanning switching fields marked over several switching stages in telecommunication systems, in particular telephone switching systems