Electromechanical gas lift valve and control system therefor,申请号US19490077752-传众专利搜索

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发明名称	Electromechanical gas lift valve and control system therefor
摘要
申请公布号	US2703532(A)	申请公布日期	1955.03.08
申请号	US19490077752	申请日期	1949.02.23
申请人	PHILLIPS PETROLEUM COMPANY	发明人	BOBO ROY ALEXANDER
分类号	E21B34/06;E21B43/12	主分类号	E21B34/06
代理机构		代理人
主权项
地址

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