Improvements relating to photographic films wound on spools,申请号GB19310021083-传众专利搜索

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发明名称	Improvements relating to photographic films wound on spools
摘要
申请公布号	GB371706(A)	申请公布日期	1932.04.28
申请号	GB19310021083	申请日期	1931.07.23
申请人	I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT	发明人
分类号	G03C1/825;G03C3/00	主分类号	G03C1/825
代理机构		代理人
主权项
地址

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