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发明名称
Outil de forage utilisable à grandes vitesses de rotation
摘要
申请公布号
FR1295590(A)
申请公布日期
1962.06.08
申请号
FR19610860338
申请日期
1961.04.27
申请人
INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS
发明人
BARON GUY;VERONNEAU ANATOLE
分类号
E21B10/46;E21B10/56
主分类号
E21B10/46
代理机构
代理人
主权项
地址
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