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发明名称
摘要
申请公布号
JP2819420(B2)
申请公布日期
1998.10.30
申请号
JP19890302730
申请日期
1989.11.20
申请人
发明人
分类号
H01J27/08;H01J27/20;H01J37/08;H01L21/265;(IPC1-7):H01J27/20
主分类号
H01J27/08
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