Method of and means for recording electrical impulses and impulse record produced thereby,申请号US19440548098-传众专利搜索

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发明名称	Method of and means for recording electrical impulses and impulse record produced thereby
摘要
申请公布号	US2404137(A)	申请公布日期	1946.07.16
申请号	US19440548098	申请日期	1944.08.04
申请人	J. A. MAURER, INC.	发明人	JR. JOHN A. MAURER,
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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