发明名称 Typewriter keyboard layout
摘要 A typewriter comprising a keyboard having a plurality of keys divided into three substantially horizontal rows, between which keys letters of the alphabet are allocated, and means operative by said keys to write the letters of the alphabet. The first key, from left to right, of the middle row, operable by the little finger of the left hand of an operator, is allocated the letter A. The sixth key, from left to right, of the middle row is allocated the letter N. Four keys in each of the top, middle and bottom rows of keys between the keys carrying the letters A and N, are allocated respectively, the first, second or third letter of each group of three letters between the letters A and N, in alphabetical sequence from left to right across the three rows of four keys. Finally, four keys in each of the top, middle and bottom rows of keys following the letter N are allocated, respectively, the first, second or third letter of each group of three letters after the letter N, in alphabetical sequence from left to right across the three rows of four keys, the row carrying each third letter of each group of three letters after the letter N being positioned such that the key carrying the letter Z is operable by the little finger of the right hand of an operator.
申请公布号 US4519721(A) 申请公布日期 1985.05.28
申请号 US19830510880 申请日期 1983.07.05
申请人 GARDNER, KATHLEEN E. 发明人 GARDNER, KATHLEEN E.
分类号 B41J5/10;G06F3/023;(IPC1-7):B41J5/10 主分类号 B41J5/10
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