Plug dropping head,申请号GB20000014033-传众专利搜索

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发明名称	Plug dropping head
摘要
申请公布号	GB2351102(A)	申请公布日期	2000.12.20
申请号	GB20000014033	申请日期	2000.06.08
申请人	* BAKER HUGHES INCORPORATED	发明人	JOHN L * BAUGH
分类号	E21B33/05;(IPC1-7):E21B33/05	主分类号	E21B33/05
代理机构		代理人
主权项
地址

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