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发明名称
摘要
申请公布号
JP3138275(B2)
申请公布日期
2001.02.26
申请号
JP19900331430
申请日期
1990.11.29
申请人
发明人
分类号
B24B19/12;(IPC1-7):B24B19/12
主分类号
B24B19/12
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代理人
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