发明名称 Display medium having a bibliographic reference corresponding to date
摘要 A daily display is associated with a text display, the daily display comprising a specific Gregorian calendar date, the text display comprising an abbreviated name of a text reference work wherein the text display is associated with the specific Gregorian calendar date to constitute a complete bibliographic citation.
申请公布号 US7345955(B1) 申请公布日期 2008.03.18
申请号 US20040858342 申请日期 2004.06.01
申请人 CAMPBELL STEVEN R 发明人 CAMPBELL STEVEN R.
分类号 G04B47/00;G04C17/00;G04C19/00 主分类号 G04B47/00
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