Apparatus for reproducing sound records,申请号US19290329800-传众专利搜索

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发明名称	Apparatus for reproducing sound records
摘要
申请公布号	US1801268(A)	申请公布日期	1931.04.21
申请号	US19290329800	申请日期	1929.01.02
申请人	DYER FRANK L	发明人	DYER FRANK L.
分类号	G11B17/00	主分类号	G11B17/00
代理机构		代理人
主权项
地址

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