Variable downhole choke,申请号AU20000057650-传众专利搜索

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发明名称	Variable downhole choke
摘要
申请公布号	AU767839(B2)	申请公布日期	2003.11.27
申请号	AU20000057650	申请日期	2000.06.23
申请人	BAKER HUGHES INCORPORATED	发明人	DALE NORMAN;ROBERT O'BRIEN;RONNIE D. RUSSELL
分类号	E21B34/06;E21B34/14;E21B43/12;(IPC1-7):E21B34/06	主分类号	E21B34/06
代理机构		代理人
主权项
地址

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