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发明名称
Systèmes de transmission d'ondes à fréquence très élevée
摘要
申请公布号
FR49457(E)
申请公布日期
1939.05.01
申请号
FRD49457
申请日期
1937.11.23
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H01P3/12
主分类号
H01P3/12
代理机构
代理人
主权项
地址
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