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发明名称
Perfectionnements aux dispositifs de télétransmissions multiples par ondes guidées
摘要
申请公布号
FR839387(A)
申请公布日期
1939.04.03
申请号
FRD839387
申请日期
1937.12.04
申请人
COMPAGNIE ELECTRO-MECANIQUE
发明人
分类号
H04B3/54
主分类号
H04B3/54
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