Downhole tool and method,申请号GB19980027067-传众专利搜索

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发明名称	Downhole tool and method
摘要
申请公布号	GB9827067(D0)	申请公布日期	1999.02.03
申请号	GB19980027067	申请日期	1997.07.11
申请人	SCHLUMBERGER LIMITED	发明人
分类号	E21B17/02;E21B23/00;E21B44/00	主分类号	E21B17/02
代理机构		代理人
主权项
地址

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