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United States of America Patent
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N/A
Issued Date -
Jun 3, 2004
app pub date -
Nov 26, 2003
filing date -
Nov 28, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
It is proposed to divide a preferably stationary optical light guide into two regions by an annular slot into which an operating panel projects. The inner region is to be visible to a user and represents a corona, which has an illuminated night design. The outer region is covered by the panel and illuminates the scale that includes various symbols and surrounds the rotary knob.
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