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发明名称
摘要
申请公布号
JPS62202903(U)
申请公布日期
1987.12.24
申请号
JP19860088944U
申请日期
1986.06.11
申请人
发明人
分类号
B24B19/02;B21B28/04;(IPC1-7):B21B28/04
主分类号
B24B19/02
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代理人
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