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发明名称
摘要
申请公布号
JPH0542304(U)
申请公布日期
1993.06.08
申请号
JP19910102963U
申请日期
1991.11.18
申请人
发明人
分类号
E01C5/00;E01C13/04;(IPC1-7):E01C5/00
主分类号
E01C5/00
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