Sound recording system,申请号US19360099320-传众专利搜索

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法人/股东/高管

发明名称	Sound recording system
摘要
申请公布号	US2102194(A)	申请公布日期	1937.12.14
申请号	US19360099320	申请日期	1936.09.03
申请人	DON CANADY	发明人	CANADY DON
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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