Manufacturing method of toothbrush filaments using power toothbrush and toothbrush using thereof
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United States of America Patent
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Aug 20, 2013
Grant Date -
Dec 1, 2011
app pub date -
Aug 27, 2010
filing date -
May 31, 2010
priority date (Note) -
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Abstract
Provided is a tapered filament for a power toothbrush made of a synthetic resin and formed with tapers at two ends thereof and a non-tapered area for tufting part of which middle is tufted into a power toothbrush, wherein an overall length is 16 to 22 mm, a length of the non-tapered area for tufting part is 4 to 12 mm, and the rest parts except for the non-tapered area for tufting part form tapers at two ends.
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