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发明名称
Manufacture of electron tube cathodes
摘要
申请公布号
US3166836(A)
申请公布日期
1965.01.26
申请号
US19620198698
申请日期
1962.05.24
申请人
RADIO CORPORATION OF AMERICA
发明人
BIGLER JOHN M.
分类号
H01J9/04
主分类号
H01J9/04
代理机构
代理人
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