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发明名称
摘要
申请公布号
JPS5649714(Y2)
申请公布日期
1981.11.19
申请号
JP19790163325U
申请日期
1979.11.24
申请人
发明人
分类号
B24B23/00;B24B23/02;(IPC1-7):B24B23/00
主分类号
B24B23/00
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