TUBING HANGER SHUTTLE VALVE,申请号GB20110021163-传众专利搜索

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发明名称	TUBING HANGER SHUTTLE VALVE
摘要
申请公布号	GB2486770(A)	申请公布日期	2012.06.27
申请号	GB20110021163	申请日期	2011.12.09
申请人	VETCO GRAY INC	发明人	WILLIAM THOMAS BRYSON
分类号	E21B34/02	主分类号	E21B34/02
代理机构		代理人
主权项
地址

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