Sound recording and reproducing system,申请号US19420463349-传众专利搜索

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发明名称	Sound recording and reproducing system
摘要
申请公布号	US2361658(A)	申请公布日期	1944.10.31
申请号	US19420463349	申请日期	1942.10.26
申请人	RADIO CORPORATION OF AMERICA	发明人	SINNETT CHESTER M.
分类号	G11B5/00	主分类号	G11B5/00
代理机构		代理人
主权项
地址

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