Handpiece controls for dictating machines,申请号US19660531419-传众专利搜索

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发明名称	Handpiece controls for dictating machines
摘要
申请公布号	US3387848(A)	申请公布日期	1968.06.11
申请号	US19660531419	申请日期	1966.03.03
申请人	MCGRAW-EDISON COMPANY	发明人	WALKER RICHARD K.
分类号	G11B19/02	主分类号	G11B19/02
代理机构		代理人
主权项
地址

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