发明名称 Interchangeable keyboard defining means
摘要 A computer interactive device supports a planar keyboard and a display panel. A resilient keyboard overlay may be inserted to and removed from a position overlying the keyboard. The keyboard is surrounded by an inwardly projecting lip defining a pair of opposed openings near the keyboard center which facilitate overly interchange.
申请公布号 US4439757(A) 申请公布日期 1984.03.27
申请号 US19810319001 申请日期 1981.11.06
申请人 MATTEL, INC. 发明人 GROSS, RAYMOND J.;HOGG, FREDRICK W.
分类号 G06F3/02;G06F3/023;H01H13/02;(IPC1-7):G06F3/02 主分类号 G06F3/02
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