Record changing mechanism for phonographs,申请号US19400326443-传众专利搜索

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发明名称	Record changing mechanism for phonographs
摘要
申请公布号	US2289357(A)	申请公布日期	1942.07.14
申请号	US19400326443	申请日期	1940.03.28
申请人	THE GENERAL INDUSTRIES COMPANY	发明人	GREEN LEE B.
分类号	G11B17/02	主分类号	G11B17/02
代理机构		代理人
主权项
地址

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