Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR604314ApublicationCriticalpatent/FR604314A/en
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
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
FR604314D1925-09-241925-09-24
Device for receiving t. s. f. suitable for phonographic reproduction devices
ExpiredFR604314A
(en)