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发明名称
PRESSED THERMIONIC CATHODE
摘要
申请公布号
GB8803070(D0)
申请公布日期
1988.03.09
申请号
GB19880003070
申请日期
1988.02.10
申请人
MALONEY, C E;CRANE, R M
发明人
分类号
H01J1/14;H01J9/04
主分类号
H01J1/14
代理机构
代理人
主权项
地址
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