发明名称 CHEAT PREVENTING OMR CARDCHEAT PREVENTING OMR CARD
摘要 A cheat preventing optical mark recognition (OMR) card capable of preventing cheating of examinees by configuring a marking part thereof such that marks formed on the marking part are not easily recognized from angles other than a right angle, that is, a front of the card. The cheat preventing OMR card includes the marking part and an answer checking section of the marking part includes a shaded background.
申请公布号 US2009188982(A1) 申请公布日期 2009.07.30
申请号 US20080133678 申请日期 2008.06.05
申请人 BYEON GYU-IL;LEE JUNG-HO 发明人 BYEON GYU-IL;LEE JUNG-HO
分类号 G06K19/00 主分类号 G06K19/00
代理机构 代理人
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