Pushbutton switch
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 9, 1997
Issued Date -
N/A
app pub date -
Jul 17, 1996
filing date -
Oct 26, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pushbutton switch is described which has a printed wiring board and a keypad arranged above the printed board, wherein the keypad has a non-working portion and a working portion made of translucent silicone rubber or thermoplastic elastomer in which the upper surfaces of the non-working portions only are covered with an opaque film, with an underside surface thereof covered by an insulating resin film so as to form an electrically conductive light-reflecting layer which is grounded to an earth portion.
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