Verfahren und Vorrichtung zum Navigationsbohren,申请号DE19966022506-传众专利搜索

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发明名称	Verfahren und Vorrichtung zum Navigationsbohren
摘要
申请公布号	DE69622506(D1)	申请公布日期	2002.08.29
申请号	DE19966022506	申请日期	1996.11.07
申请人	BAKER-HUGHES INC., HOUSTON	发明人	WILLIAMS, MICHAEL P.;EHLERS, RALPH
分类号	E21B4/02;E21B7/06;E21B21/10;E21B23/04;(IPC1-7):E21B7/06	主分类号	E21B4/02
代理机构		代理人
主权项
地址

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