ELECTRIC METER WITH BACKLIGHT INDICATOR
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United States of America Patent
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Issued Date -
Dec 6, 2012
app pub date -
Jun 2, 2011
filing date -
Jun 2, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The electric meter contains a number of indicator units radially arranged along the circumference of a selection dial and a backlight switch. Each indicator unit contains a lighting element marked with a label. The backlight switch, when engaged, turns on the lighting element of the indicator unit pointed by the selection dial so that its label is visible in the dark and the operation mode of the electric meter is identifiable, even though there is no or little illumination.
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