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发明名称
DISK FILE WITH AIR FILTRATION SYSTEM
摘要
申请公布号
EP0244525(B1)
申请公布日期
1990.07.25
申请号
EP19860303515
申请日期
1986.05.08
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
HATCHETT, MICHAEL ROBERT;HEATH, JOHN STEWART
分类号
G11B23/03;G11B23/02;G11B33/14
主分类号
G11B23/03
代理机构
代理人
主权项
地址
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