Articulated riser protector,申请号GB19970012938-传众专利搜索

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发明名称	Articulated riser protector
摘要
申请公布号	GB9712938(D0)	申请公布日期	1997.08.20
申请号	GB19970012938	申请日期	1997.06.20
申请人	ABB VETCO GRAY INC	发明人
分类号	E21B17/01	主分类号	E21B17/01
代理机构		代理人
主权项
地址

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