Roller tube
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United States of America Patent
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Nov 7, 2017
Issued Date -
N/A
app pub date -
Mar 10, 2016
filing date -
Feb 23, 2012
priority date (Note) -
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Abstract
A roller tube comprising a tube body which defines on its outwardly facing surface one or more blind substrate or shutter substrate receiving portions, wherein the tube body includes a plurality of sound damping elements located circumferentially around its inwardly facing surface, the sound damping elements extending longitudinally along at least part of the length of the tube body and defining a plurality of sound channels inside the tube.
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