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经营范围
发明名称
MAGNETIC DISK STORAGE DEVICE
摘要
申请公布号
JPS57200971(A)
申请公布日期
1982.12.09
申请号
JP19810082481
申请日期
1981.06.01
申请人
HITACHI SEISAKUSHO KK
发明人
SASAMOTO ASAO
分类号
G11B33/14;G11B5/41;G11B21/21;G11B23/50;G11B33/00
主分类号
G11B33/14
代理机构
代理人
主权项
地址
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