Elevator fpr supporting an elongate member such as a drill pipe,申请号GB20000027509-传众专利搜索

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发明名称	Elevator fpr supporting an elongate member such as a drill pipe
摘要
申请公布号	GB0027509(D0)	申请公布日期	2000.12.27
申请号	GB20000027509	申请日期	1999.05.12
申请人	MARTIN, RICHARD	发明人
分类号	E21B19/06;E21B19/15	主分类号	E21B19/06
代理机构		代理人
主权项
地址

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