Method of recording and reproduction of sound and apparatus therefor,申请号US19390267416-传众专利搜索

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发明名称	Method of recording and reproduction of sound and apparatus therefor
摘要
申请公布号	US2247554(A)	申请公布日期	1941.07.01
申请号	US19390267416	申请日期	1939.04.12
申请人	WALT DISNEY PRODUCTIONS	发明人	GARITY WILLIAM E.;HAWKINS JOHN N. A.
分类号	G11B5/02	主分类号	G11B5/02
代理机构		代理人
主权项
地址

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