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发明名称
DISPOSITIF DE FORAGE POUR REHABILITER OU POUR REMPLACER UNE CANALISATION ENTERREE
摘要
申请公布号
FR2803870(B1)
申请公布日期
2002.04.05
申请号
FR20000000395
申请日期
2000.01.13
申请人
SOBEA ILE DE FRANCE
发明人
FERREIRA ANTOINE
分类号
E21B7/20;E21B7/28;E21B10/44;F16L55/165;(IPC1-7):E21B7/28;F16L1/028;F16L1/06;F16L55/18
主分类号
E21B7/20
代理机构
代理人
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地址
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