Improvements in and relating to sound recording apparatus,申请号GB19360021158-传众专利搜索

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发明名称	Improvements in and relating to sound recording apparatus
摘要
申请公布号	GB463234(A)	申请公布日期	1937.03.24
申请号	GB19360021158	申请日期	1936.07.30
申请人	THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED	发明人
分类号	G11B15/28;G11B15/43	主分类号	G11B15/28
代理机构		代理人
主权项
地址

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