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发明名称
Dispositifs commutateurs pour lignes de transmission à hautes fréquences
摘要
申请公布号
FR717399(A)
申请公布日期
1932.01.07
申请号
FRD717399
申请日期
1931.05.20
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H01P1/12;H01Q1/52;H04B1/48;H04B3/04
主分类号
H01P1/12
代理机构
代理人
主权项
地址
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