Elektromagnetisk Optegningsapparat, navnlig til Optegning af Lydspor.,申请号DKD52223-传众专利搜索

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发明名称	Elektromagnetisk Optegningsapparat, navnlig til Optegning af Lydspor.
摘要
申请公布号	DK52223(C)	申请公布日期	1936.09.28
申请号	DKD52223	申请日期	1935.04.16
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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