Steerable drilling mole.,申请号EP19900870081-传众专利搜索

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发明名称	Steerable drilling mole.
摘要
申请公布号	EP0401191(B1)	申请公布日期	1993.12.22
申请号	EP19900870081	申请日期	1990.05.28
申请人	SMET, MARC JOZEF MARIA	发明人	SMET, MARC JOZEF MARIA
分类号	E21B7/06;(IPC1-7):E21B7/06	主分类号	E21B7/06
代理机构		代理人
主权项
地址

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