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发明名称
摘要
申请公布号
JPH0520801(U)
申请公布日期
1993.03.19
申请号
JP19910069018U
申请日期
1991.08.29
申请人
发明人
分类号
B23B3/22;(IPC1-7):B23B3/22
主分类号
B23B3/22
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