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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
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FR726448D1931-10-291931-10-29Dispositif d'enregistrement et de reproduction automatiques des conversations téléphoniques
ExpiredFR726448A
(fr)