Purification of naphthenic acids,申请号US19330684929-传众专利搜索

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发明名称	Purification of naphthenic acids
摘要
申请公布号	US2035696(A)	申请公布日期	1936.03.31
申请号	US19330684929	申请日期	1933.08.12
申请人	UNION OIL COMPANY OF CALLFORNIA	发明人	EWING FREDERICK J.
分类号		主分类号
代理机构		代理人
主权项
地址

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