Improvements in methods and apparatus for recording magnetic information,申请号GB19550014086-传众专利搜索

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发明名称	Improvements in methods and apparatus for recording magnetic information
摘要
申请公布号	GB769761(A)	申请公布日期	1957.03.13
申请号	GB19550014086	申请日期	1955.05.16
申请人	SIMON LEVIN	发明人
分类号	G11B5/00;G11B11/20;H04N5/78	主分类号	G11B5/00
代理机构		代理人
主权项
地址

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