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发明名称
摘要
申请公布号
JP4009038(B2)
申请公布日期
2007.11.14
申请号
JP19990070843
申请日期
1999.03.16
申请人
发明人
分类号
E01B29/00;E03F7/00;E03F7/12;F16L1/00
主分类号
E01B29/00
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