2-SPEED TOOTHBRUSH
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United States of America Patent
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Issued Date -
Mar 25, 2010
app pub date -
Dec 5, 2007
filing date -
Dec 5, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A circuit for varying the speed of a variable speed motor having a power source to provide a voltage to the motor and a diode as a means to provide a voltage drop within the circuit that is substantially independent of the amount of current to the motor. The invention may further comprise an electric toothbrush using the circuit.
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