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发明名称
摘要
申请公布号
JPS5394369(U)
申请公布日期
1978.08.01
申请号
JP19760177185U
申请日期
1976.12.29
申请人
发明人
分类号
B23B31/20;(IPC1-7):B23B31/20
主分类号
B23B31/20
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代理人
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