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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 filed by Standard Elektrik Lorenz AG, C Lorenz AGfiledCriticalStandard Elektrik Lorenz AG
Application grantedgrantedCritical
Publication of FR787440ApublicationCriticalpatent/FR787440A/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
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
FR787440D1934-03-161935-03-15Dispositif pour l'enregistrement électro-magnétique du son suivant le procédé poulsen
ExpiredFR787440A
(fr)