UNA HERRAMIENTA DE PERFORACION ROTATIVA EQUIPADA CON UN DISPOSITIVO DE PERCUSION,申请号AR19780273206-传众专利搜索

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发明名称	UNA HERRAMIENTA DE PERFORACION ROTATIVA EQUIPADA CON UN DISPOSITIVO DE PERCUSION
摘要
申请公布号	AR223822(A1)	申请公布日期	1981.09.30
申请号	AR19780273206	申请日期	1978.08.04
申请人	PETROLES CIE FRANCAISE	发明人
分类号	E21B1/26;E21B4/14;E21B6/00;E21B7/24;E21B10/00;(IPC1-7):E21B9/00;E21B5/00;F03C1/00;F15C1/08	主分类号	E21B1/26
代理机构		代理人
主权项
地址

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