Automatic record changing phonograph,申请号US19330687392-传众专利搜索

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发明名称	Automatic record changing phonograph
摘要
申请公布号	US1991964(A)	申请公布日期	1935.02.19
申请号	US19330687392	申请日期	1933.08.30
申请人	SMALL THOMAS W	发明人	SMALL THOMAS W.
分类号	G11B17/04	主分类号	G11B17/04
代理机构		代理人
主权项
地址

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