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经营范围
发明名称
Detector circuit
摘要
申请公布号
US2022412(A)
申请公布日期
1935.11.26
申请号
US19310552632
申请日期
1931.07.23
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
EGYED LADISLAUS
分类号
H03D1/16
主分类号
H03D1/16
代理机构
代理人
主权项
地址
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