Improvements in record-changing means for talking machines,申请号GB19460036047-传众专利搜索

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发明名称	Improvements in record-changing means for talking machines
摘要
申请公布号	GB639932(A)	申请公布日期	1950.07.12
申请号	GB19460036047	申请日期	1946.12.05
申请人	THE GARRARD ENGINEERING & MANUFACTURING COMPANY LIMITED	发明人
分类号	G11B17/16	主分类号	G11B17/16
代理机构		代理人
主权项
地址

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