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发明名称
摘要
申请公布号
JPS4730179(U)
申请公布日期
1972.12.05
申请号
JP19710035000U
申请日期
1971.05.01
申请人
发明人
分类号
B23B33/00;B24B5/04;(IPC1-7):B23B33/00
主分类号
B23B33/00
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代理人
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