Depth correlation in well logging apparatus,申请号US19570669518-传众专利搜索

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发明名称	Depth correlation in well logging apparatus
摘要
申请公布号	US2809436(A)	申请公布日期	1957.10.15
申请号	US19570669518	申请日期	1957.07.02
申请人	CALIFORNIA RESEARCH CORPORATION	发明人	WORTHINGTON ALBERT E.;WALSTROM JOHN E.
分类号	E21B47/00;G01V3/34	主分类号	E21B47/00
代理机构		代理人
主权项
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