Method and apparatus for audition,申请号US19280326023-传众专利搜索

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发明名称	Method and apparatus for audition
摘要
申请公布号	US1855146(A)	申请公布日期	1932.04.19
申请号	US19280326023	申请日期	1928.12.14
申请人	BARTLETT JONES W	发明人	JONES W. BARTLETT
分类号	H04S1/00	主分类号	H04S1/00
代理机构		代理人
主权项
地址

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