Lost circulation fluid for oil field drilling operations.,申请号EG19900000407-传众专利搜索

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发明名称	Lost circulation fluid for oil field drilling operations.
摘要
申请公布号	EG19240(A)	申请公布日期	1995.04.30
申请号	EG19900000407	申请日期	1990.07.07
申请人	MARATHON OIL CO.	发明人	SYDANSK ROBERT D.
分类号	C09K8/12;C09K8/04;C09K8/88;E21B21/00;(IPC1-7):E21B43/00	主分类号	C09K8/12
代理机构		代理人
主权项
地址

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