Magnetic recording apparatus,申请号US19410421079-传众专利搜索

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发明名称	Magnetic recording apparatus
摘要
申请公布号	US2359617(A)	申请公布日期	1944.10.03
申请号	US19410421079	申请日期	1941.11.29
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人	BRYCE JAMES W.
分类号		主分类号
代理机构		代理人
主权项
地址

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