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发明名称
摘要
申请公布号
JPS6412373(U)
申请公布日期
1989.01.23
申请号
JP19870107299U
申请日期
1987.07.13
申请人
发明人
分类号
H01J61/94;(IPC1-7):H01J61/94
主分类号
H01J61/94
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代理人
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