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发明名称
摘要
申请公布号
JPS5993660(U)
申请公布日期
1984.06.25
申请号
JP19820185924U
申请日期
1982.12.06
申请人
发明人
分类号
B02C17/18;(IPC1-7):B02C17/18
主分类号
B02C17/18
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代理人
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