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经营范围
发明名称
Dispositif pour la transmission ou la réception des ondes courtes
摘要
申请公布号
FR679528(A)
申请公布日期
1930.04.14
申请号
FRD679528
申请日期
1929.07.30
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H03B5/34;H03B21/01
主分类号
H03B5/34
代理机构
代理人
主权项
地址
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