TOBACCO SMOKE FILTER
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United States of America Patent
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Issued Date -
Feb 3, 2011
app pub date -
Jan 23, 2009
filing date -
Jan 23, 2008
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Abstract
A tobacco smoke filter or filter element comprising a cylindrical plug of a substantially homogeneous filtering material of circumference between 14.0 and 23.2 mm, wherein the substantially homogeneous filtering material comprises a plurality of randomly oriented staple fibres.
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