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发明名称
INPUT DEVICE
摘要
PURPOSE:To prevent mis-input by providing a recognition hole in each card in such a manner that the hole position is different for any card.
申请公布号
JPS52102631(A)
申请公布日期
1977.08.29
申请号
JP19760018954
申请日期
1976.02.25
申请人
HITACHI LTD
发明人
IGARASHI TSUKASA
分类号
G06F3/023;G06F3/02;G07G1/12;G09B1/02
主分类号
G06F3/023
代理机构
代理人
主权项
地址
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