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经营范围
发明名称
Electron discharge tubes
摘要
申请公布号
GB1078416(A)
申请公布日期
1967.08.09
申请号
GB19640047804
申请日期
1964.11.24
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H01J19/42;H01J19/46
主分类号
H01J19/42
代理机构
代理人
主权项
地址
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