Loud speaker cabinet,申请号US19270188954-传众专利搜索

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发明名称	Loud speaker cabinet
摘要
申请公布号	US1810568(A)	申请公布日期	1931.06.16
申请号	US19270188954	申请日期	1927.05.05
申请人	LIEBREICH OSCAR P	发明人	LIEBREICH OSCAR P.
分类号	H04R1/02	主分类号	H04R1/02
代理机构		代理人
主权项
地址

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