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发明名称
摘要
申请公布号
JPH0366145(U)
申请公布日期
1991.06.27
申请号
JP19890127292U
申请日期
1989.10.31
申请人
发明人
分类号
G01N27/62;H01J49/12;H01J49/26;(IPC1-7):H01J49/12
主分类号
G01N27/62
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代理人
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