Annulus presure actuated casing hanger running tool,申请号GB19940023280-传众专利搜索

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发明名称	Annulus presure actuated casing hanger running tool
摘要
申请公布号	GB9423280(D0)	申请公布日期	1995.01.11
申请号	GB19940023280	申请日期	1994.11.18
申请人	ABB VETCO GRAY INC	发明人
分类号	E21B33/043	主分类号	E21B33/043
代理机构		代理人
主权项
地址

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