WATER BASE DRILLING FLUID,申请号GB19890005502-传众专利搜索

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发明名称	WATER BASE DRILLING FLUID
摘要
申请公布号	GB2216574(B)	申请公布日期	1992.05.06
申请号	GB19890005502	申请日期	1989.03.10
申请人	* SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.	发明人	ARTHUR HERMAN * HALE;GEORGE CONSTANTINE * BLYTAS;ASHOK KUMAR RUPKRISHEN * DEWAN
分类号	C09K8/24	主分类号	C09K8/24
代理机构		代理人
主权项
地址

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