Earth boring kit,申请号GB19930025054-传众专利搜索

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发明名称	Earth boring kit
摘要
申请公布号	GB2273726(B)	申请公布日期	1996.04.24
申请号	GB19930025054	申请日期	1993.12.07
申请人	* BAKER HUGHES INCORPORATED	发明人	MATTHEW RAY * ISBELL;RUDOLF CARL OTTO * PESSIER;ROBERT E * GRIMES
分类号	E21B10/12;E21B10/16;E21B10/52;(IPC1-7):E21B10/16	主分类号	E21B10/12
代理机构		代理人
主权项
地址

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