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Publication of FR1090161ApublicationCriticalpatent/FR1090161A/fr
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
H04M1/65—Recording arrangements for recording a message from the calling party
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
FR1090161D1953-10-071953-10-07Procédé et installation pour la commande d'un téléphonographe
ExpiredFR1090161A
(fr)