Improvements in talking machines,申请号GB19290008601-传众专利搜索

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发明名称	Improvements in talking machines
摘要
申请公布号	GB330645(A)	申请公布日期	1930.06.16
申请号	GB19290008601	申请日期	1929.03.16
申请人	THE GRAMOPHONE COMPANY LIMITED;HARRY ARCHIBALD THOMPSETT;EDWARD CHIFFEY	发明人
分类号	G11B17/00	主分类号	G11B17/00
代理机构		代理人
主权项
地址

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