Improvements in or relating to colour-formers for use in colour photography,申请号GB19400002705-传众专利搜索

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发明名称	Improvements in or relating to colour-formers for use in colour photography
摘要
申请公布号	GB542904(A)	申请公布日期	1942.02.02
申请号	GB19400002705	申请日期	1940.02.12
申请人	DU PONT FILM MANUFACTURING CORPORATION	发明人
分类号	G03C7/36;G03C7/384	主分类号	G03C7/36
代理机构		代理人
主权项
地址

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