METHOD AND SYSTEM FOR MEASUREMENT OF FLUID FLOW IN A DRILLING RIG RETURN LINE,申请号EP19900203068-传众专利搜索

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发明名称	METHOD AND SYSTEM FOR MEASUREMENT OF FLUID FLOW IN A DRILLING RIG RETURN LINE
摘要
申请公布号	EP0437872(A3)	申请公布日期	1991.07.31
申请号	EP19900203068	申请日期	1990.11.20
申请人	ANADRILL INTERNATIONAL SA;SERVICES PETROLIERS SCHLUMBERGER, (FORMERLY SOCIETE DE PROSPECTION ELECTRIQUE SCHLUMBERGER)	发明人	ZANKER, KLAUS;ORBAN, JACQUES
分类号	E21B21/08;G01F1/00;G01F23/296;(IPC1-7):G01F1/00	主分类号	E21B21/08
代理机构		代理人
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