Fluid pressure operated bottom hole chemical injector,申请号US19560604823-传众专利搜索

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发明名称	Fluid pressure operated bottom hole chemical injector
摘要
申请公布号	US2928471(A)	申请公布日期	1960.03.15
申请号	US19560604823	申请日期	1956.08.17
申请人	JONES EDWARD N	发明人	JONES EDWARD N.
分类号	E21B27/02	主分类号	E21B27/02
代理机构		代理人
主权项
地址

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