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发明名称
摘要
申请公布号
JPS6448660(U)
申请公布日期
1989.03.27
申请号
JP19870144663U
申请日期
1987.09.22
申请人
发明人
分类号
B02B7/00;G01N21/85;(IPC1-7):G01N21/85
主分类号
B02B7/00
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