Debenzolizing and purifying wash oil with steam,申请号US19570637514-传众专利搜索

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发明名称	Debenzolizing and purifying wash oil with steam
摘要
申请公布号	US2913374(A)	申请公布日期	1959.11.17
申请号	US19570637514	申请日期	1957.01.31
申请人	KOPPERS COMPANY, INC.	发明人	ACKEREN JOSEPH VAN;HELM EDWARD J.
分类号	C10K1/18	主分类号	C10K1/18
代理机构		代理人
主权项
地址

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