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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
H04B1/06—Receivers
H04B1/08—Constructional details, e.g. cabinet
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Signal Processing
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FR629570D1926-05-071926-05-07Perfectionnements aux appareils émetteurs de sons
ExpiredFR629570A
(fr)