Semi-flexible air duct
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United States of America Patent
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N/A
Issued Date -
May 5, 2005
app pub date -
Oct 27, 2004
filing date -
Oct 29, 2003
priority date (Note) -
Abandoned
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Abstract
A semi-flexible air duct comprising an inner layer of fibrous material reinforced by a support member to provide a continuous bore for the air duct; an insulation layer of cellulose-based material surrounding the inner layer and an outer layer surrounding the insulation layer.
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