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发明名称
CONDUIT ENTERRE A SECTION TRANSVERSALE VOUTEE
摘要
申请公布号
FR2804452(B1)
申请公布日期
2002.07.19
申请号
FR20000001178
申请日期
2000.01.31
申请人
HOLDING PBM
发明人
DEMAEGT CLAUDE
分类号
E01F5/00;E02D29/05;E21D11/08;(IPC1-7):E02D29/045
主分类号
E01F5/00
代理机构
代理人
主权项
地址
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