Phonograph recorder and reproducer,申请号US19450604316-传众专利搜索

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发明名称	Phonograph recorder and reproducer
摘要
申请公布号	US2545652(A)	申请公布日期	1951.03.20
申请号	US19450604316	申请日期	1945.07.11
申请人	THOMAS A. EDISON, INCORPORATED	发明人	DANN CHARLES W.;SOMERS RICHARD M.
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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