Sheet winding structure
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United States of America Patent
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Aug 8, 2017
Grant Date -
Apr 21, 2016
app pub date -
Jan 19, 2015
filing date -
Oct 20, 2014
priority date (Note) -
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Abstract
The present invention discloses a sheet winding structure to reduce indentation transfer occurring because of sheet thickness or adhesive colloidality of the innermost layer of the sheet. The sheet winding structure comprises: a winding core having an outer surface, wherein the outer surface of the winding core comprises a recess thereon; and a sheet winded over the outer surface of the winding core, wherein a beginning portion of the sheet is disposed in the recess.
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