发明名称 KEYBOARD
摘要 A keyboard includes a stiffener having a plurality of recesses defined therein, a flexible printed circuit defining a plurality of venting holes, each venting hole in correspondence with one of the plurality of recesses, and a dome sheet provided on top of the flexible printed circuit and including a plurality of domes, each of the domes in correspondence with one of the plurality of venting holes.
申请公布号 CA2756992(C) 申请公布日期 2016.06.14
申请号 CA20112756992 申请日期 2011.11.03
申请人 RESEARCH IN MOTION LIMITED 发明人 CHEN, CHAO
分类号 H01H13/705;H01H13/715;H01H13/84 主分类号 H01H13/705
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