发明名称 Stress relieving keys
摘要 A cushioned key including a top face, a bottom face, and four side faces. Each key has a hollow cushion compartment defined by the top face of the key, the side faces of the key and further a divider.
申请公布号 US5813777(A) 申请公布日期 1998.09.29
申请号 US19970854259 申请日期 1997.05.09
申请人 BONNSTAUFFER, BILL 发明人 BONNSTAUFFER, BILL
分类号 G06F3/02;H01H13/14;(IPC1-7):B41J5/12 主分类号 G06F3/02
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