Phonograph,申请号US19290354114-传众专利搜索

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发明名称	Phonograph
摘要
申请公布号	US1881583(A)	申请公布日期	1932.10.11
申请号	US19290354114	申请日期	1929.04.10
申请人	UNITED REPRODUCERS CORPORATION	发明人	HOLLY GEORGE SAMUEL
分类号	G11B25/04	主分类号	G11B25/04
代理机构		代理人
主权项
地址

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