Improvements in and relating to sound recording or/and reproducing machines,申请号GB19470004650-传众专利搜索

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发明名称	Improvements in and relating to sound recording or/and reproducing machines
摘要
申请公布号	GB632853(A)	申请公布日期	1949.12.05
申请号	GB19470004650	申请日期	1947.02.18
申请人	BRYANS AEROQUIPMENT LIMITED;CHARLES ARTHUR WILMSHURST	发明人
分类号	G11B25/02	主分类号	G11B25/02
代理机构		代理人
主权项
地址

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