Drilling mud and process,申请号US19630311964-传众专利搜索

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发明名称	Drilling mud and process
摘要
申请公布号	US3284353(A)	申请公布日期	1966.11.08
申请号	US19630311964	申请日期	1963.09.27
申请人	HERCULES INCORPORATED	发明人	BATDORF JACK B.;JR. RICHARD T. GARDNER,
分类号	C09K8/20	主分类号	C09K8/20
代理机构		代理人
主权项
地址

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