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发明名称
摘要
申请公布号
JPH0542148(Y2)
申请公布日期
1993.10.25
申请号
JP19860193764U
申请日期
1986.12.18
申请人
发明人
分类号
E01F5/00;E03F5/04;(IPC1-7):E03F5/04
主分类号
E01F5/00
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