High temperature subsurface safety valve,申请号GB19860003066-传众专利搜索

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发明名称	High temperature subsurface safety valve
摘要
申请公布号	GB2172321(A)	申请公布日期	1986.09.17
申请号	GB19860003066	申请日期	1986.02.07
申请人	* CAMCO INCORPORATED	发明人	RONALD EARL * PRINGLE
分类号	E21B34/00;E21B34/10;(IPC1-7):E21B34/06	主分类号	E21B34/00
代理机构		代理人
主权项
地址

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