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发明名称
摘要
申请公布号
JPS56171146(U)
申请公布日期
1981.12.17
申请号
JP19800067950U
申请日期
1980.05.16
申请人
发明人
分类号
B24B3/38;(IPC1-7):B24B3/38
主分类号
B24B3/38
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代理人
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地址
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