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CHR GFELLER AG
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CHR GFELLER AG
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Publication of FR660068ApublicationCriticalpatent/FR660068A/fr
H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
H04Q5/14—Signalling by pulses
H04Q5/16—Signalling by pulses by predetermined number of pulses
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FR660068D1928-09-091928-09-07Installation téléphonique avec dispositif pour l'appel sélectif de stations branchées en parallèle sur une ligne commune
ExpiredFR660068A
(fr)