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发明名称
摘要
申请公布号
JPS5648460(U)
申请公布日期
1981.04.30
申请号
JP19790131233U
申请日期
1979.09.21
申请人
发明人
分类号
B24B33/08;(IPC1-7):B24B33/08
主分类号
B24B33/08
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