Oppblasbar borehullpakning med trykk-kompensering,申请号NO19980000383-传众专利搜索

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发明名称	Oppblasbar borehullpakning med trykk-kompensering
摘要
申请公布号	NO316785(B1)	申请公布日期	2004.05.10
申请号	NO19980000383	申请日期	1998.01.28
申请人	BAKER HUGHES INC	发明人	CORONADO MARTIN P
分类号	E21B33/12;E21B33/127;(IPC1-7):E21B33/127;E21B33/134	主分类号	E21B33/12
代理机构		代理人
主权项
地址

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