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经营范围
发明名称
Cathode ray transmitting tube
摘要
申请公布号
US2202614(A)
申请公布日期
1940.05.28
申请号
US19370152931
申请日期
1937.07.10
申请人
TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.
发明人
ABRAHAMSOHN MAX
分类号
H01J29/02;H01J31/30
主分类号
H01J29/02
代理机构
代理人
主权项
地址
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