Dual Barrier side pocket mandrel.,申请号GB20120008809-传众专利搜索

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发明名称	Dual Barrier side pocket mandrel.
摘要
申请公布号	GB2493049(A)	申请公布日期	2013.01.23
申请号	GB20120008809	申请日期	2012.05.18
申请人	BAKER HUGHES INCORPORATED	发明人	PETER J FAY
分类号	E21B43/12	主分类号	E21B43/12
代理机构		代理人
主权项
地址

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