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经营范围
发明名称
Tube construction and circuit arrangement
摘要
申请公布号
US2037168(A)
申请公布日期
1936.04.14
申请号
US19330695400
申请日期
1933.10.27
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
JOBST GUNTHER
分类号
H01J21/02
主分类号
H01J21/02
代理机构
代理人
主权项
地址
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