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经营范围
发明名称
Magnetic disk and magnetic disk drive system
摘要
申请公布号
GB9410239(D0)
申请公布日期
1994.07.13
申请号
GB19940010239
申请日期
1994.05.23
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
G11B20/10
主分类号
G11B20/10
代理机构
代理人
主权项
地址
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