Apparatus for determining the angular positions of objects in wells,申请号US19450622418-传众专利搜索

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发明名称	Apparatus for determining the angular positions of objects in wells
摘要
申请公布号	US2572332(A)	申请公布日期	1951.10.23
申请号	US19450622418	申请日期	1945.10.15
申请人	GOODWIN JOHN S;PHILLIP CAMPBELL	发明人	GOODWIN JOHN S.;CAMPBELL PHILLIP
分类号	E21B47/024	主分类号	E21B47/024
代理机构		代理人
主权项
地址

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