DEVICE FOR A DOWN-HOLE ASSEMBLY,申请号GB19900025763-传众专利搜索

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发明名称	DEVICE FOR A DOWN-HOLE ASSEMBLY
摘要
申请公布号	GB9025763(D0)	申请公布日期	1991.01.09
申请号	GB19900025763	申请日期	1990.11.27
申请人	PIPE RECOVERY CONSULTANTS LIMITED	发明人
分类号	E21B23/06;E21B29/00;E21B33/129	主分类号	E21B23/06
代理机构		代理人
主权项
地址

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