Appareil sélecteur pour la reproduction des phonogrammes photographiques,申请号FRD714811-传众专利搜索

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发明名称	Appareil sélecteur pour la reproduction des phonogrammes photographiques
摘要
申请公布号	FR714811(A)	申请公布日期	1931.11.20
申请号	FRD714811	申请日期	1931.04.04
申请人		发明人	OWENS FREEMAN HARRISON
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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