Correction device for dictation machines,申请号US19300473275-传众专利搜索

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发明名称	Correction device for dictation machines
摘要
申请公布号	US2072055(A)	申请公布日期	1937.02.23
申请号	US19300473275	申请日期	1930.08.05
申请人	DICTAPHONE CORPORATION	发明人	LUCARELLE JOSEPH M.
分类号	G11B27/13	主分类号	G11B27/13
代理机构		代理人
主权项
地址

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