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经营范围
发明名称
Improvements in or relating to magnetic records
摘要
申请公布号
GB770455(A)
申请公布日期
1957.03.20
申请号
GB19540016184
申请日期
1954.06.01
申请人
EDWARD WRIOTHESLEY CURZON RUSSELL
发明人
分类号
G06K19/08
主分类号
G06K19/08
代理机构
代理人
主权项
地址
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