Reciprocating pulser for mud pulse telemetry,申请号GB20070022481-传众专利搜索

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发明名称	Reciprocating pulser for mud pulse telemetry
摘要
申请公布号	GB0722481(D0)	申请公布日期	2007.12.27
申请号	GB20070022481	申请日期	2006.05.24
申请人	BAKER HUGHES INCORPORATED	发明人
分类号	E21B47/18;H04L1/00;H04L27/00	主分类号	E21B47/18
代理机构		代理人
主权项
地址

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