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发明名称
Procédé pour l'exécution de forages au moyen d'outils mis en rotation à l'aide de tiges télescopiques et dispositif pour sa mise en oeuvre
摘要
申请公布号
BE580405(A1)
申请公布日期
1959.11.03
申请号
BE19590580405
申请日期
1959.07.06
申请人
COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL, SOCIETE ANONYME
发明人
分类号
(IPC1-7):E21B
主分类号
(IPC1-7):E21B
代理机构
代理人
主权项
地址
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