CEMENT PORT CLOSURE SLEEVE FOR A SUBSEA WELL,申请号GB19930004806-传众专利搜索

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发明名称	CEMENT PORT CLOSURE SLEEVE FOR A SUBSEA WELL
摘要
申请公布号	GB9304806(D0)	申请公布日期	1993.04.28
申请号	GB19930004806	申请日期	1993.03.09
申请人	ABB VETCO GRAY INC.	发明人
分类号	E21B33/043;E21B33/14	主分类号	E21B33/043
代理机构		代理人
主权项
地址

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