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发明名称
摘要
申请公布号
JPH0769164(B2)
申请公布日期
1995.07.26
申请号
JP19890054627
申请日期
1989.03.07
申请人
发明人
分类号
G01B15/00;H01J37/04;H01J37/22;(IPC1-7):G01B15/00
主分类号
G01B15/00
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代理人
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