Raising of natural oil and other liquids by gaseous pressure,申请号US19470720412-传众专利搜索

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发明名称	Raising of natural oil and other liquids by gaseous pressure
摘要
申请公布号	US2526801(A)	申请公布日期	1950.10.24
申请号	US19470720412	申请日期	1947.01.06
申请人	FRASER BROWN NORMAN	发明人	BROWN NORMAN FRASER
分类号	E21B43/12	主分类号	E21B43/12
代理机构		代理人
主权项
地址

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