System for the reception and reproduction of sound,申请号US19370162932-传众专利搜索

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发明名称	System for the reception and reproduction of sound
摘要
申请公布号	US2122010(A)	申请公布日期	1938.06.28
申请号	US19370162932	申请日期	1937.09.08
申请人	FRANCIS SAVAGE LAWRENCE;JOHN FRANCIS CYRIL	发明人	SAVAGE LAWRENCE FRANCIS;FRANCIS CYRIL JOHN
分类号	H04S3/00	主分类号	H04S3/00
代理机构		代理人
主权项
地址

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