MECHANICAL-HYDRAULIC DOUBLE-ACTING DRILLING JAR,申请号EP19960917095-传众专利搜索

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发明名称	MECHANICAL-HYDRAULIC DOUBLE-ACTING DRILLING JAR
摘要
申请公布号	EP0830493(B1)	申请公布日期	2000.05.17
申请号	EP19960917095	申请日期	1996.06.03
申请人	WEATHERFORD/LAMB INC.	发明人	EVANS, ROBERT, W.
分类号	E21B31/107;E21B31/113;(IPC1-7):E21B31/113	主分类号	E21B31/107
代理机构		代理人
主权项
地址

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