Tooth cleaning system with timer and signaling means
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United States of America Patent
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-
Aug 8, 1995
Grant Date -
N/A
app pub date -
May 9, 1994
filing date -
May 9, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A toothbrush with timer and signalling apparatus having interchangeable periodontal devices. The signalling apparatus is composed of both an audio and vibrating signalling device to alert the user when the preset time limit is achieved.
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