Focal bearing assembly and bearing pre-load assembly for a steerable rotary drilling device,申请号AU20030200408-传众专利搜索

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发明名称	Focal bearing assembly and bearing pre-load assembly for a steerable rotary drilling device
摘要
申请公布号	AU2003200408(A1)	申请公布日期	2003.04.10
申请号	AU20030200408	申请日期	2003.02.05
申请人	HALLIBURTON ENERGY SERVICES, INC.	发明人	ELIS VANDENBERG;JR. JOHN RANSFORD HARDIN;EDWARD JAMES CARGILL
分类号	E21B7/06;E21B7/08;F16C29/04;(IPC1-7):E21B7/08	主分类号	E21B7/06
代理机构		代理人
主权项
地址

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