Stepback mechanism for dictating machine playback arms,申请号US19510215698-传众专利搜索

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发明名称	Stepback mechanism for dictating machine playback arms
摘要
申请公布号	US2637562(A)	申请公布日期	1953.05.05
申请号	US19510215698	申请日期	1951.03.15
申请人	THE SOUNDSCRIBER CORPORATION	发明人	BALMER DONALD F.
分类号	G11B3/08;G11B19/02	主分类号	G11B3/08
代理机构		代理人
主权项
地址

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