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Publication of FR768075ApublicationCriticalpatent/FR768075A/fr
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/26—Devices for calling a subscriber
H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
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Engineering & Computer Science
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Signal Processing
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Telephone Set Structure
(AREA)
FR768075D1934-01-311934-02-02Procédé et dispositif d'appel pour installations téléphoniques automatiques à sélecteurs
ExpiredFR768075A
(fr)