Seal assembly for safety valve,申请号GB20050002967-传众专利搜索

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发明名称	Seal assembly for safety valve
摘要
申请公布号	GB0502967(D0)	申请公布日期	2005.03.16
申请号	GB20050002967	申请日期	2005.02.14
申请人	WEATHERFORD/LAMB INC.	发明人
分类号	E21B33/10;E21B34/00;E21B34/10	主分类号	E21B33/10
代理机构		代理人
主权项
地址

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