Perfectionnements apportés à la projection cinématographique,申请号FRD1102640-传众专利搜索

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发明名称	Perfectionnements apportés à la projection cinématographique
摘要
申请公布号	FR1102640(A)	申请公布日期	1955.10.24
申请号	FRD1102640	申请日期	1954.04.10
申请人		发明人	DAVID RENE
分类号	G03B21/50	主分类号	G03B21/50
代理机构		代理人
主权项
地址

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