ENVIRONMENTALLY SAFE DRILLING FLUID.,申请号EP19940903247-传众专利搜索

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发明名称	ENVIRONMENTALLY SAFE DRILLING FLUID.
摘要
申请公布号	EP0675936(A4)	申请公布日期	1995.12.06
申请号	EP19940903247	申请日期	1993.11.09
申请人	O'BRIAN-GOINS-SIMPSON & ASSOCIATES, INC.	发明人	WALKER, THAD, O.
分类号	C09K8/20;(IPC1-7):C09K7/02	主分类号	C09K8/20
代理机构		代理人
主权项
地址

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