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 US7690690(B1) 申请公布日期 2010.04.06
申请号 US20070004863 申请日期 2007.12.22
申请人 CAMPBELL STEVEN R 发明人 CAMPBELL STEVEN R.
分类号 B42D5/04;G04B19/24;G09D3/00 主分类号 B42D5/04
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