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Publication of FR682716ApublicationCriticalpatent/FR682716A/fr
H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
H04Q5/18—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre
H04Q5/20—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre the subordinate centre permitting interconnection of subscribers connected thereto
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FR682716D1928-10-041929-10-03Sous-centrale satellite automatique pour installations téléphoniques multiplex
ExpiredFR682716A
(fr)