WORKOVER RIG FOR OIL WELLS,申请号GB19770003225-传众专利搜索

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发明名称	WORKOVER RIG FOR OIL WELLS
摘要
申请公布号	GB1480813(A)	申请公布日期	1977.07.27
申请号	GB19770003225	申请日期	1974.08.23
申请人	BAKER OIL TOOLS INC	发明人
分类号	E21B15/00;E21B19/08;(IPC1-7):E21B15/00	主分类号	E21B15/00
代理机构		代理人
主权项
地址

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