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发明名称
Improvements in or relating to magnetic data storage systems
摘要
申请公布号
GB782582(A)
申请公布日期
1957.09.11
申请号
GB19540035336
申请日期
1954.12.07
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
SPENCER ROLF EDMUND
分类号
G11B5/004
主分类号
G11B5/004
代理机构
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