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发明名称
摘要
申请公布号
JPS60155957(U)
申请公布日期
1985.10.17
申请号
JP19840043339U
申请日期
1984.03.28
申请人
发明人
分类号
B02C17/16;B02C23/20;B02C23/28;(IPC1-7):B02C17/16
主分类号
B02C17/16
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代理人
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