Apparatus for surveying bore holes,申请号US19530340799-传众专利搜索

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发明名称	Apparatus for surveying bore holes
摘要
申请公布号	US2857677(A)	申请公布日期	1958.10.28
申请号	US19530340799	申请日期	1953.03.06
申请人	UNITED AIRCRAFT CORPORATION	发明人	NORDEN CARL L.
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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