WELLBORE SYSTEM WITH ANNULAR SEAL MEMBER,申请号EP20020767232-传众专利搜索

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发明名称	WELLBORE SYSTEM WITH ANNULAR SEAL MEMBER
摘要
申请公布号	EP1407113(B1)	申请公布日期	2006.03.22
申请号	EP20020767232	申请日期	2002.07.18
申请人	SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.	发明人	BOSMA, MARTIN, GERARD, RENE;CORNELISSEN, ERIK, KERST
分类号	E21B33/124;E21B33/12;E21B43/10	主分类号	E21B33/124
代理机构		代理人
主权项
地址

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