Method and apparatus for taking cores from a borehole,申请号US19350013728-传众专利搜索

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发明名称	Method and apparatus for taking cores from a borehole
摘要
申请公布号	US2073263(A)	申请公布日期	1937.03.09
申请号	US19350013728	申请日期	1935.03.29
申请人	SHELL DEVELOPMENT COMPANY	发明人	HOHMANN HENRI M.;HENDRIK N. L. C. E. C. DE WILDE
分类号	E21B25/02	主分类号	E21B25/02
代理机构		代理人
主权项
地址

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