发明名称 Ballot form and method for making and using same
摘要 The present invention is an improved scannable answer sheet or document suitable for a balloting process and a method for producing such document using a printing process, particularly a document that may be printed in a single color without impacting the ability of the document to be scanned by an automated mechanism.
申请公布号 US7070115(B2) 申请公布日期 2006.07.04
申请号 US20030348804 申请日期 2003.01.22
申请人 DEBIASE SALVATORE E 发明人 DEBIASE SALVATORE E.
分类号 G06K19/06;B42D15/00;G07C13/00 主分类号 G06K19/06
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