Oil well surveying instrument,申请号US19360106019-传众专利搜索

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发明名称	Oil well surveying instrument
摘要
申请公布号	US2089153(A)	申请公布日期	1937.08.03
申请号	US19360106019	申请日期	1936.10.16
申请人	MONROE DANIEL B	发明人	MONROE DANIEL B.
分类号	E21B47/022	主分类号	E21B47/022
代理机构		代理人
主权项
地址

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