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发明名称
摘要
申请公布号
JPH0131319(Y2)
申请公布日期
1989.09.26
申请号
JP19860033476U
申请日期
1986.03.07
申请人
发明人
分类号
B02C18/14;B02C18/16;B02C23/04;G01V3/02;(IPC1-7):B02C18/16
主分类号
B02C18/14
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