Drilling mud,申请号US19440524453-传众专利搜索

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法人/股东/高管

发明名称	Drilling mud
摘要
申请公布号	US2391622(A)	申请公布日期	1945.12.25
申请号	US19440524453	申请日期	1944.02.29
申请人	STANOLIND OIL AND GAS COMPANY	发明人	DUNN THOMAS H.
分类号	C09K8/16;C09K8/22	主分类号	C09K8/16
代理机构		代理人
主权项
地址

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