Sub Surface Safety Valve,申请号GB20090020976-传众专利搜索

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发明名称	Sub Surface Safety Valve
摘要
申请公布号	GB2478107(A)	申请公布日期	2011.08.31
申请号	GB20090020976	申请日期	2009.12.01
申请人	ARTIFICIAL LIFT COMPANY LIMITED	发明人	PHILIP HEAD
分类号	E21B34/06;E21B33/12	主分类号	E21B34/06
代理机构		代理人
主权项
地址

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