Device for flowing fluid from wells,申请号US19520284705-传众专利搜索

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发明名称	Device for flowing fluid from wells
摘要
申请公布号	US2725015(A)	申请公布日期	1955.11.29
申请号	US19520284705	申请日期	1952.04.28
申请人	MITCHELL RESCOE A	发明人	MITCHELL RESCOE A.
分类号	E21B43/12;E21B43/24	主分类号	E21B43/12
代理机构		代理人
主权项
地址

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