Method and apparatus for high density digital data magnetic recording,申请号US19610137342-传众专利搜索

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发明名称	Method and apparatus for high density digital data magnetic recording
摘要
申请公布号	US3228016(A)	申请公布日期	1966.01.04
申请号	US19610137342	申请日期	1961.09.11
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人	HOPNER EMIL
分类号	G11B20/14	主分类号	G11B20/14
代理机构		代理人
主权项
地址

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