Packer with metal sealing element,申请号GB20060020404-传众专利搜索

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发明名称	Packer with metal sealing element
摘要
申请公布号	GB2431675(B)	申请公布日期	2007.12.19
申请号	GB20060020404	申请日期	2004.05.14
申请人	WEATHERFORD/LAMB INC.	发明人	DAVID E HIRTH;TARALD GUDMESTAD
分类号	E21B33/128;E21B33/12	主分类号	E21B33/128
代理机构		代理人
主权项
地址

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