Toothbrush bristle arrangement
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United States of America Patent
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May 23, 2017
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N/A
app pub date -
Dec 11, 2009
filing date -
Dec 15, 2008
priority date (Note) -
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Abstract
A toothbrush head with bristles comprising tapered and non-tapered bristles, in which the non-tapered bristles extend to two different lengths from the face, being a first greater length LN1 and a second shorter length LN2. In a preferred embodiment non-tapered bristles are combined with tapered bristles in tufts which are inclined in opposite directions away from and towards the grip handle.
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