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.)
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International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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Filing date
Publication date
Priority claimed from GB1448053Aexternal-prioritypatent/GB763828A/en
Priority claimed from DEST11765Aexternal-prioritypatent/DE1041098B/de
Application filed by International Standard Electric Corp filedCriticalInternational Standard Electric Corp
Priority to FR749379ApriorityCriticalpatent/FR72935E/fr
Application grantedgrantedCritical
Publication of FR72935EpublicationCriticalpatent/FR72935E/fr
H04M5/16—Manual exchanges with means for reducing interference; with means for reducing effects due to line faults
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
FR749379A1953-05-221957-10-14Systèmes pour l'enregistrement, l'extraction et la modification d'informations dansdes systèmes de télécommunications
ExpiredFR72935E
(fr)