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发明名称
Spud method of installing oil well drilling bases
摘要
申请公布号
US2592448(A)
申请公布日期
1952.04.08
申请号
US19480030540
申请日期
1948.06.02
申请人
RAYMOND CONCRETE PILE COMPANY
发明人
MCMENIMEN WILLIAM V.
分类号
E02B17/02;E21B15/02
主分类号
E02B17/02
代理机构
代理人
主权项
地址
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