Dispositif électrodynamique servant à la transformation des oscillations électriques en vibrations acoustiques, ou inversement,申请号FRD713126-传众专利搜索

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发明名称	Dispositif électrodynamique servant à la transformation des oscillations électriques en vibrations acoustiques, ou inversement
摘要
申请公布号	FR713126(A)	申请公布日期	1931.10.22
申请号	FRD713126	申请日期	1931.03.12
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H04R9/04	主分类号	H04R9/04
代理机构		代理人
主权项
地址

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