Sound reproducing cabinet,申请号US19340759109-传众专利搜索

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发明名称	Sound reproducing cabinet
摘要
申请公布号	US2050575(A)	申请公布日期	1936.08.11
申请号	US19340759109	申请日期	1934.12.24
申请人	KRAUSE EARNEST J	发明人	KRAUSE EARNEST J.
分类号	H04R1/28	主分类号	H04R1/28
代理机构		代理人
主权项
地址

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