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经营范围
发明名称
Band pass coupling network
摘要
申请公布号
US2248466(A)
申请公布日期
1941.07.08
申请号
US19380230383
申请日期
1938.09.17
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
ROOSENSTEIN HANS OTTO
分类号
H03F3/36
主分类号
H03F3/36
代理机构
代理人
主权项
地址
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