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发明名称
摘要
申请公布号
JP2506769(Y2)
申请公布日期
1996.08.14
申请号
JP19900058277U
申请日期
1990.05.31
申请人
发明人
分类号
H01J27/02;H01J27/08;H01J37/08;(IPC1-7):H01J27/08
主分类号
H01J27/02
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