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发明名称
摘要
申请公布号
JPH0317947(Y2)
申请公布日期
1991.04.16
申请号
JP19850140290U
申请日期
1985.09.13
申请人
发明人
分类号
G01N1/28;B02C18/06;G01N1/36;(IPC1-7):B02C18/06
主分类号
G01N1/28
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