Valve control for gas lift,申请号US19510230973-传众专利搜索

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发明名称	Valve control for gas lift
摘要
申请公布号	US2759429(A)	申请公布日期	1956.08.21
申请号	US19510230973	申请日期	1951.06.11
申请人	PHILLIPS PETROLEUM COMPANY	发明人	BUBB FRANK W.
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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