Appareil amplificateur d'appels sur véhicules automobiles,申请号FRD750458-传众专利搜索

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发明名称	Appareil amplificateur d'appels sur véhicules automobiles
摘要
申请公布号	FR750458(A)	申请公布日期	1933.08.11
申请号	FRD750458	申请日期	1933.02.01
申请人		发明人	VIDAL ERNEST-EMILE-IRENE
分类号	G08B3/10	主分类号	G08B3/10
代理机构		代理人
主权项
地址

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