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经营范围
发明名称
HARD DISK DRIVE
摘要
申请公布号
JPH0574129(A)
申请公布日期
1993.03.26
申请号
JP19910257082
申请日期
1991.09.09
申请人
NIPPON STEEL CORP
发明人
TSUKADA KEN
分类号
G11B33/14
主分类号
G11B33/14
代理机构
代理人
主权项
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