RETRIEVABLE WELL APPARATUS,申请号GB19810018541-传众专利搜索

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发明名称	RETRIEVABLE WELL APPARATUS
摘要
申请公布号	GB2084222(A)	申请公布日期	1982.04.07
申请号	GB19810018541	申请日期	1981.06.16
申请人	BAKER INTERNATIONAL CORP	发明人
分类号	E21B23/06;E21B33/1295;(IPC1-7):E21B33/12	主分类号	E21B23/06
代理机构		代理人
主权项
地址

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