Apparatus for secondary recovery in oil wells,申请号US19470763648-传众专利搜索

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发明名称	Apparatus for secondary recovery in oil wells
摘要
申请公布号	US2624410(A)	申请公布日期	1953.01.06
申请号	US19470763648	申请日期	1947.07.25
申请人	NIXON JEDDY D	发明人	NIXON JEDDY D.
分类号	E21B43/18	主分类号	E21B43/18
代理机构		代理人
主权项
地址

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