Lochapparat mit Verzögerungsvorrichtung für Bohrloch.,申请号DE19906016318-传众专利搜索

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发明名称	Lochapparat mit Verzögerungsvorrichtung für Bohrloch.
摘要
申请公布号	DE69016318(D1)	申请公布日期	1995.03.09
申请号	DE19906016318	申请日期	1990.09.06
申请人	HALLIBURTON CO., DUNCAN, OKLA., US	发明人	GEORGE, KEVIN R., COLUMBUS, TEXAS 78934, US
分类号	E21B43/117;E21B43/1185;(IPC1-7):E21B43/118;E21B43/116	主分类号	E21B43/117
代理机构		代理人
主权项
地址

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