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经营范围
发明名称
Perfectionnements aux postes récepteurs de t.s.f.
摘要
申请公布号
FR35726(E)
申请公布日期
1930.03.27
申请号
FRD35726
申请日期
1926.11.04
申请人
发明人
PORTE ROBERT
分类号
H04B1/12
主分类号
H04B1/12
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代理人
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