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发明名称
摘要
申请公布号
JP3123845(B2)
申请公布日期
2001.01.15
申请号
JP19920341377
申请日期
1992.11.27
申请人
发明人
分类号
H01J37/20;H01J37/22;H01J37/252;(IPC1-7):H01J37/20
主分类号
H01J37/20
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代理人
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