Toothbrush
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United States of America Patent
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-
Dec 20, 1994
Grant Date -
N/A
app pub date -
Dec 15, 1993
filing date -
Dec 15, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a toothbrush including a flexible extension which is attached to the outside of a brush head for perfectly cleaning the back teeth and minimizing scratches on the periodontal tissue surface and oral cavity.
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