Selective production means for wells,申请号US19400315046-传众专利搜索

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发明名称	Selective production means for wells
摘要
申请公布号	US2307983(A)	申请公布日期	1943.01.12
申请号	US19400315046	申请日期	1940.01.22
申请人	LANE-WELLS COMPANY	发明人	BARNES CHARLES H.
分类号	E21B43/14	主分类号	E21B43/14
代理机构		代理人
主权项
地址

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