Sound recording and reproducing device,申请号US19320648245-传众专利搜索

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发明名称	Sound recording and reproducing device
摘要
申请公布号	US2130158(A)	申请公布日期	1938.09.13
申请号	US19320648245	申请日期	1932.12.21
申请人	ARNO RYSICK	发明人	RYSICK ARNO
分类号	G11B3/08	主分类号	G11B3/08
代理机构		代理人
主权项
地址

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