Improvements in or relating to sulphur dyes especially sulphur blacks,申请号GB19310005943-传众专利搜索

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发明名称	Improvements in or relating to sulphur dyes especially sulphur blacks
摘要
申请公布号	GB357065(A)	申请公布日期	1931.09.17
申请号	GB19310005943	申请日期	1931.02.25
申请人	E. I. DUPONT DE NEMOURS & COMPANY	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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