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经营范围
发明名称
Tuning indicator circuit
摘要
申请公布号
US2122562(A)
申请公布日期
1938.07.05
申请号
US19360092066
申请日期
1936.07.23
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
EWALD WOLFGANG F.
分类号
H03J3/12
主分类号
H03J3/12
代理机构
代理人
主权项
地址
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