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发明名称
摘要
申请公布号
JPH0270955(U)
申请公布日期
1990.05.30
申请号
JP19880150882U
申请日期
1988.11.17
申请人
发明人
分类号
B24B5/18;(IPC1-7):B24B5/18
主分类号
B24B5/18
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代理人
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