Perfectionnement aux dispositifs de guidages externe et latéral d'une pellicule pendant son passage dans le couloir de film d'appareils cinématographiques de projection,申请号FRD763878-传众专利搜索

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发明名称	Perfectionnement aux dispositifs de guidages externe et latéral d'une pellicule pendant son passage dans le couloir de film d'appareils cinématographiques de projection
摘要
申请公布号	FR763878(A)	申请公布日期	1934.05.08
申请号	FRD763878	申请日期	1933.02.03
申请人	SOCIETE DES APPAREILS SONORES UNIVERSEL	发明人
分类号	G03B31/02	主分类号	G03B31/02
代理机构		代理人
主权项
地址

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