Application of mud-laden fluids to oil or gas wells,申请号US19290398818-传众专利搜索

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发明名称	Application of mud-laden fluids to oil or gas wells
摘要
申请公布号	US1991637(A)	申请公布日期	1935.02.19
申请号	US19290398818	申请日期	1929.10.10
申请人	NATIONAL PIGMENTS & CHEMICAL COMPANY	发明人	HARTH PHILLIP E.
分类号	C09K8/14	主分类号	C09K8/14
代理机构		代理人
主权项
地址

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