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发明名称
Means for the visual indication of information selected from a data storage
摘要
申请公布号
GB786043(A)
申请公布日期
1957.11.13
申请号
GB19540037225
申请日期
1950.06.23
申请人
GERHARD DIRKS
发明人
分类号
G06F3/02
主分类号
G06F3/02
代理机构
代理人
主权项
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