METAL COMPLEXES OF LIGNOSULPHONATES AND THEIR USE AS DRILLING FLUID ADDITIVES,申请号GB19790013776-传众专利搜索

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发明名称	METAL COMPLEXES OF LIGNOSULPHONATES AND THEIR USE AS DRILLING FLUID ADDITIVES
摘要
申请公布号	GB2020271(B)	申请公布日期	1982.09.02
申请号	GB19790013776	申请日期	1979.04.20
申请人	DRESSER INDUSTRIES INC	发明人
分类号	B01F17/50;C09K8/20;(IPC1-7):C07G1/00;C09K7/02	主分类号	B01F17/50
代理机构		代理人
主权项
地址

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