Procédé et dispositif permettant d'exécuter des enregistrements sonores sans bruit de fond,申请号FRD859543-传众专利搜索

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发明名称	Procédé et dispositif permettant d'exécuter des enregistrements sonores sans bruit de fond
摘要
申请公布号	FR859543(A)	申请公布日期	1940.12.20
申请号	FRD859543	申请日期	1939.08.28
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
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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