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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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Filing date
Publication date
Application filed by Le Materiel Telephonique Thomson CSFfiledCriticalLe Materiel Telephonique Thomson CSF
Application grantedgrantedCritical
Publication of FR789413ApublicationCriticalpatent/FR789413A/fr
H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
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Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Telephonic Communication Services
(AREA)
FR789413D1934-06-181935-04-30Perfectionnements pour systèmes de connexion télégraphiques ou télégraphiques et téléphoniques combinés
ExpiredFR789413A
(fr)