Multiple record support for phonographs,申请号US19430515957-传众专利搜索

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发明名称	Multiple record support for phonographs
摘要
申请公布号	US2472960(A)	申请公布日期	1949.06.14
申请号	US19430515957	申请日期	1943.12.28
申请人	PHILCO CORPORATION	发明人	RUDOLPH WILLIAM E.
分类号	G11B17/24	主分类号	G11B17/24
代理机构		代理人
主权项
地址

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