发明名称 Perpetual calendar which utilizes seven month tables and methods of constructing and using the same
摘要 The invention relates to a pocket calendar which is perpetual and which utilizes two arrays of elements. The first array has coordinates corresponding to the decade and the year. The elements of the array are one of fourteen designators. The second array has coordinates which correspond to the twelve months and to one of seven 31-day month tables which each begin on one of the seven days of the week. Each element of the second array is comprised of two of the designators of the first array. The location of the designator in the second array indicates the month table for the month in question. Funnels direct the user's attention to the proper month table.
申请公布号 US4828290(A) 申请公布日期 1989.05.09
申请号 US19880141972 申请日期 1988.01.11
申请人 HARRIS, GARY J. 发明人 HARRIS, GARY J.
分类号 G09D3/00 主分类号 G09D3/00
代理机构 代理人
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