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发明名称
摘要
申请公布号
JPH0660957(U)
申请公布日期
1994.08.23
申请号
JP19930075599U
申请日期
1993.12.16
申请人
发明人
分类号
H01J27/14;H01J37/08;H01J37/18;(IPC1-7):H01J37/08
主分类号
H01J27/14
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代理人
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