Formation testing method and apparatus,申请号US19380245243-传众专利搜索

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发明名称	Formation testing method and apparatus
摘要
申请公布号	US2187486(A)	申请公布日期	1940.01.16
申请号	US19380245243	申请日期	1938.12.12
申请人	BAKER OIL TOOLS, INC.	发明人	BURT CLARENCE E.
分类号	E21B49/08	主分类号	E21B49/08
代理机构		代理人
主权项
地址

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