Process of improving lubricating oils,申请号US19380222680-传众专利搜索

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发明名称	Process of improving lubricating oils
摘要
申请公布号	US2238846(A)	申请公布日期	1941.04.15
申请号	US19380222680	申请日期	1938.08.02
申请人	RUHRCHEMIE AKTIENGESELLSCHAFT	发明人	CLAR CARL;GEISER NIKOLAUS;KUHNEL PAUL
分类号	C10G50/02	主分类号	C10G50/02
代理机构		代理人
主权项
地址

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