Improvements in or relating to the colouration of materials made of or containing cellulose derivatives,申请号GB19390007412-传众专利搜索

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发明名称	Improvements in or relating to the colouration of materials made of or containing cellulose derivatives
摘要
申请公布号	GB506253(A)	申请公布日期	1939.05.19
申请号	GB19390007412	申请日期	1937.10.19
申请人	HENRY DREYFUS	发明人
分类号	C09B1/28	主分类号	C09B1/28
代理机构		代理人
主权项
地址

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