Method of improving oil well drilling muds,申请号US19360067530-传众专利搜索

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发明名称	Method of improving oil well drilling muds
摘要
申请公布号	US2094316(A)	申请公布日期	1937.09.28
申请号	US19360067530	申请日期	1936.03.06
申请人	KANSAS CITY TESTING LABORATORY	发明人	CROSS ROY;CROSS MATTHEW FORBES
分类号	C09K8/05	主分类号	C09K8/05
代理机构		代理人
主权项
地址

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