DOWNHOLE STABILISER,申请号GB19910025778-传众专利搜索

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发明名称	DOWNHOLE STABILISER
摘要
申请公布号	GB9125778(D0)	申请公布日期	1992.02.05
申请号	GB19910025778	申请日期	1991.12.04
申请人	ANDERSON, CHARLES A	发明人
分类号	E21B7/08;E21B17/06;E21B17/10	主分类号	E21B7/08
代理机构		代理人
主权项
地址

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