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发明名称
摘要
申请公布号
JPS63179058(U)
申请公布日期
1988.11.18
申请号
JP19870070723U
申请日期
1987.05.11
申请人
发明人
分类号
B24B55/02;B24D7/10;(IPC1-7):B24B55/02
主分类号
B24B55/02
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