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发明名称
摘要
申请公布号
JPS63197044(U)
申请公布日期
1988.12.19
申请号
JP19870088364U
申请日期
1987.06.08
申请人
发明人
分类号
B24B5/40;(IPC1-7):B24B5/40
主分类号
B24B5/40
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代理人
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