Improvements in and relating to kinematographic films,申请号GB19310014069-传众专利搜索

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发明名称	Improvements in and relating to kinematographic films
摘要
申请公布号	GB349942(A)	申请公布日期	1931.05.20
申请号	GB19310014069	申请日期	1930.02.20
申请人	RALPH LEONARD ASPDEN	发明人
分类号	G03B35/00	主分类号	G03B35/00
代理机构		代理人
主权项
地址

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