Improvements in or relating to sound recording and reproduction devices,申请号GB19340036166-传众专利搜索

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发明名称	Improvements in or relating to sound recording and reproduction devices
摘要
申请公布号	GB429987(A)	申请公布日期	1935.06.11
申请号	GB19340036166	申请日期	1934.12.17
申请人	THE BRITISH THOMSON-HOUSTON COMPANY LIMITED	发明人
分类号	G11B5/127	主分类号	G11B5/127
代理机构		代理人
主权项
地址

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