Improved method and device for mechanically recording oscillations particularly sound oscillations,申请号GB19340000680-传众专利搜索

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发明名称	Improved method and device for mechanically recording oscillations particularly sound oscillations
摘要
申请公布号	GB422815(A)	申请公布日期	1935.01.18
申请号	GB19340000680	申请日期	1934.01.08
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	G11B11/00	主分类号	G11B11/00
代理机构		代理人
主权项
地址

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