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发明名称
摘要
申请公布号
JPS6425331(U)
申请公布日期
1989.02.13
申请号
JP19870106894U
申请日期
1987.07.10
申请人
发明人
分类号
B02C13/09;B02C13/28;(IPC1-7):B02C13/28
主分类号
B02C13/09
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