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经营范围
发明名称
Automatic frequency control circuit
摘要
申请公布号
US2151506(A)
申请公布日期
1939.03.21
申请号
US19370179883
申请日期
1937.12.15
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
EWALD WOLFGANG F.;WILHELM KARL
分类号
H03J7/16
主分类号
H03J7/16
代理机构
代理人
主权项
地址
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