Improvements in or in connection with discs or plates for sound reproduction and/or recording,申请号GB19340007511-传众专利搜索

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发明名称	Improvements in or in connection with discs or plates for sound reproduction and/or recording
摘要
申请公布号	GB438029(A)	申请公布日期	1935.11.11
申请号	GB19340007511	申请日期	1934.03.09
申请人	V. G. MANUFACTURING COMPANY LIMITED;FREDERIK MARINUS VAN GELDEREN	发明人
分类号	G11B3/70	主分类号	G11B3/70
代理机构		代理人
主权项
地址

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