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发明名称
摘要
申请公布号
JPH0542103(Y2)
申请公布日期
1993.10.25
申请号
JP19890016991U
申请日期
1989.02.15
申请人
发明人
分类号
E01H5/10;(IPC1-7):E01H5/10
主分类号
E01H5/10
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