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发明名称
摘要
申请公布号
JPH0250670(U)
申请公布日期
1990.04.09
申请号
JP19880129949U
申请日期
1988.10.05
申请人
发明人
分类号
G01N23/18;G03B42/02;(IPC1-7):G01N23/18
主分类号
G01N23/18
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