Dispositif permettant d'obtenir à volonté tous signes (lettres, chiffres, dessins, etc.) par projection lumineuse,申请号FRD37537-传众专利搜索

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发明名称	Dispositif permettant d'obtenir à volonté tous signes (lettres, chiffres, dessins, etc.) par projection lumineuse
摘要
申请公布号	FR37537(E)	申请公布日期	1930.12.20
申请号	FRD37537	申请日期	1929.10.28
申请人	APPAREILS LUMINEUX ANNONCIATEURS ET SIGNALISATEURS	发明人
分类号	G09F9/37	主分类号	G09F9/37
代理机构		代理人
主权项
地址

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