While drilling system and method,申请号GB20040014862-传众专利搜索

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发明名称	While drilling system and method
摘要
申请公布号	GB0414862(D0)	申请公布日期	2004.08.04
申请号	GB20040014862	申请日期	2004.07.02
申请人	SCHLUMBERGER HOLDINGS LIMITED	发明人
分类号	E21B47/01;E21B47/06;E21B47/12	主分类号	E21B47/01
代理机构		代理人
主权项
地址

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