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发明名称
Magnetic recording system
摘要
申请公布号
US3197739(A)
申请公布日期
1965.07.27
申请号
US19580745731
申请日期
1958.06.30
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
NEWMAN ERNEST G.
分类号
G11B20/12;G11B20/20
主分类号
G11B20/12
代理机构
代理人
主权项
地址
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