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发明名称
METHOD AND SYSTEM FOR CONTROLLING VIBRATIONS IN BOREHOLE EQUIPMENT
摘要
申请公布号
AU627644(B2)
申请公布日期
1992.08.27
申请号
AU19910070872
申请日期
1991.02.07
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
BARTHOLOMEUS GERARDUS GOSEWINUS VAN WALSTIJN;JOHAN DIRK JANSEN;IVO PETRUS JOZEF MARIA STULEMEIJER;ROBERT NICHOLAS WORRALL
分类号
E21B41/00;E21B44/00;E21B47/00;(IPC1-7):E21B44/00
主分类号
E21B41/00
代理机构
代理人
主权项
地址
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