发明名称 COMPOSITE SWITCH AND PORTABLE DEVICE WITH SAME
摘要 A composite switch comprises: a first switch that operates by applying a first load to a first key; and a second switch that operates by applying a second load to a second key disposed on the first key.
申请公布号 US2011006928(A1) 申请公布日期 2011.01.13
申请号 US20090922311 申请日期 2009.04.28
申请人 发明人 KITAGAWA TAKEHARU
分类号 H03M11/00 主分类号 H03M11/00
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