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发明名称
摘要
申请公布号
JP2692470(B2)
申请公布日期
1997.12.17
申请号
JP19910334706
申请日期
1991.12.18
申请人
发明人
分类号
H01J61/48;(IPC1-7):H01J61/48
主分类号
H01J61/48
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代理人
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