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United States of America Patent
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Issued Date -
Jan 15, 2009
app pub date -
Jun 26, 2008
filing date -
Jun 28, 2007
priority date (Note) -
Abandoned
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Abstract
Toothbrush heads with bristle tufts comprised of longer tapered bristles and shorter non-tapered bristles in respective embodiments comprising tufts which include both tapered and non-tapered bristles, and comprising an outer ring of tufts of non-tapered bristles round an inner region of tufts of longer tapered bristles.
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