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发明名称
DISPOSITIF POUR LA REALISATION D'UN PUITS DANS UN SOL
摘要
申请公布号
FR2935015(B1)
申请公布日期
2010.11.05
申请号
FR20080004610
申请日期
2008.08.18
申请人
ARSONNET GERARD
发明人
ARSONNET GERARD
分类号
E21B7/20;E21B6/00
主分类号
E21B7/20
代理机构
代理人
主权项
地址
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