Process of preparing the tetrasulphuric acid ester of leuco-1,2,2',1'-anthraquinone azine,申请号US19320647494-传众专利搜索

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发明名称	Process of preparing the tetrasulphuric acid ester of leuco-1,2,2',1'-anthraquinone azine
摘要
申请公布号	US2022218(A)	申请公布日期	1935.11.26
申请号	US19320647494	申请日期	1932.12.15
申请人	DURAND & HUGUENIN A.-G.	发明人	ROSCH GEORG;HALLER JOSEF;HELWERT FRITZ
分类号	C09B9/02	主分类号	C09B9/02
代理机构		代理人
主权项
地址

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