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发明名称	Benyttelse av utstyr i et brönnsystem
摘要
申请公布号	NO995247(A)	申请公布日期	1999.11.17
申请号	NO19990005247	申请日期	1999.10.27
申请人	SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV	发明人	BOER, JOHANNIS JOSEPHUS DEN;SHEEHY, HUGH EDWARD
分类号	E21B23/00;E21B43/30;(IPC1-7):E21B43/30;E21B43/00	主分类号	E21B23/00
代理机构		代理人
主权项
地址

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