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发明名称
MAGNETIC DISK
摘要
PURPOSE:To provide a magnetic disk, in which time required in processing information can be shortened; its magnetic disk pack can be replaced, when a magnetic disk replaceable type is employed; and manufacturing costs cna be lowered.
申请公布号
JPS5248304(A)
申请公布日期
1977.04.18
申请号
JP19750123311
申请日期
1975.10.15
申请人
HITACHI LTD
发明人
TAKAHASHI TADAO;ISHIBASHI TOBUTAKE
分类号
G06F3/06;G11B5/012;G11B5/09;G11B25/04
主分类号
G06F3/06
代理机构
代理人
主权项
地址
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