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International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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Application grantedgrantedCritical
Publication of FR938975ApublicationCriticalpatent/FR938975A/fr
H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
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Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
FR938975D1946-02-011946-02-01Perfectionnements aux systèmes de communication
ExpiredFR938975A
(fr)