Process of treating yellowish or off-white materials to obtain a white appearance using umbelliferone or methyl umbelliferone,申请号US19430494590-传众专利搜索

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发明名称	Process of treating yellowish or off-white materials to obtain a white appearance using umbelliferone or methyl umbelliferone
摘要
申请公布号	US2590485(A)	申请公布日期	1952.03.25
申请号	US19430494590	申请日期	1943.07.13
申请人	LEVER BROTHERS COMPANY	发明人	MEYER HANS
分类号	D06L3/12	主分类号	D06L3/12
代理机构		代理人
主权项
地址

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