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经营范围
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
代理机构
代理人
主权项
地址
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