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发明名称
Procédé et appareil pour forer des puits sous eau
摘要
申请公布号
FR1369946(A)
申请公布日期
1964.08.14
申请号
FR19630948926
申请日期
1963.09.27
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V.
发明人
分类号
E21B33/14;E21B41/00
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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