Process for converting petroleum oil,申请号US19220534858-传众专利搜索

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发明名称	Process for converting petroleum oil
摘要
申请公布号	US1806283(A)	申请公布日期	1931.05.19
申请号	US19220534858	申请日期	1922.02.08
申请人	UNIVERSAL OIL PRODUCTS COMPANY	发明人	DUBBS CARBON P.
分类号		主分类号
代理机构		代理人
主权项
地址

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