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发明名称
Perfectionnements apportés aux tubes souples et leurs applications, notamment au forage
摘要
申请公布号
FR1216433(A)
申请公布日期
1960.04.25
申请号
FR19580779961
申请日期
1958.11.25
申请人
发明人
PATIN PIERRE-CHARLES
分类号
E21B17/20;F16L11/08
主分类号
E21B17/20
代理机构
代理人
主权项
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