MODULAR DRILLING MACHINE AND COMPONENTS THEREOF,申请号EP19870303713-传众专利搜索

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发明名称	MODULAR DRILLING MACHINE AND COMPONENTS THEREOF
摘要
申请公布号	EP0243210(A3)	申请公布日期	1989.03.01
申请号	EP19870303713	申请日期	1987.04.27
申请人	W-N APACHE CORPORATION	发明人	WILLIS, CLYDE A.
分类号	E21B15/00;(IPC1-7):E21B15/00	主分类号	E21B15/00
代理机构		代理人
主权项
地址

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