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发明名称
READING AND WRITING INFORMATION ON A STORAGE MEDIUM
摘要
申请公布号
GB1285729(A)
申请公布日期
1972.08.16
申请号
GB19690062631
申请日期
1969.12.23
申请人
SINGER N.V.
发明人
分类号
G06F1/08;G11B20/14
主分类号
G06F1/08
代理机构
代理人
主权项
地址
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