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发明名称
Tube base and socket
摘要
申请公布号
US2014843(A)
申请公布日期
1935.09.17
申请号
US19330683434
申请日期
1933.08.03
申请人
RADIO CORPORATION OF AMERICA
发明人
HIRMANN JULIUS
分类号
H01J5/54;H01J19/66
主分类号
H01J5/54
代理机构
代理人
主权项
地址
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