Perfectionnements apportés aux appareils de projection des films sonores combinés avec un phonographe,申请号FRD713266-传众专利搜索

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发明名称	Perfectionnements apportés aux appareils de projection des films sonores combinés avec un phonographe
摘要
申请公布号	FR713266(A)	申请公布日期	1931.10.24
申请号	FRD713266	申请日期	1931.03.16
申请人		发明人	MOUTILLET LOUIS-HENRI
分类号	G03B31/00	主分类号	G03B31/00
代理机构		代理人
主权项
地址

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