Key sheet and pushbutton switch
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United States of America Patent
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May 26, 2009
Grant Date -
Jan 3, 2008
app pub date -
Jul 2, 2007
filing date -
Jul 3, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
stacked on the entire back surfaces of the key tops. Thus, fingernails or the like are not easily allowed to get between the key tops and the film sheet, making it possible to prevent the key tops from being unstuck from the film sheet. Further, in the key sheet, the film sheet and a base sheet are integrated with each other, so the key tops can be firmly fixed to the base sheet through an intermediation of the film sheet, making it possible to prevent the key tops from being detached by fingernails or the like at the time of depressing operation.
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