Sound reproducing device,申请号US19300427855-传众专利搜索

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发明名称	Sound reproducing device
摘要
申请公布号	US1873153(A)	申请公布日期	1932.08.23
申请号	US19300427855	申请日期	1930.02.12
申请人	LEOPOLD PRICE SIDNEY	发明人	PRICE SIDNEY LEOPOLD
分类号	H04R11/00	主分类号	H04R11/00
代理机构		代理人
主权项
地址

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