Apparatus for investigating earth formations,申请号US19550536204-传众专利搜索

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发明名称	Apparatus for investigating earth formations
摘要
申请公布号	US2903071(A)	申请公布日期	1959.09.08
申请号	US19550536204	申请日期	1955.09.23
申请人	SCHLUMBERGER WELL SURVEYING CORPORATION	发明人	FIELDS ROGER Q.
分类号	E21B49/10	主分类号	E21B49/10
代理机构		代理人
主权项
地址

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