Improvements in or relating to projecting cinematographic films,申请号GB19290006682-传众专利搜索

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发明名称	Improvements in or relating to projecting cinematographic films
摘要
申请公布号	GB330239(A)	申请公布日期	1930.06.02
申请号	GB19290006682	申请日期	1929.03.01
申请人	LE FILM OZAPHANE	发明人
分类号	G03B1/32	主分类号	G03B1/32
代理机构		代理人
主权项
地址

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