Video Productions:Not KnotThe Order-7 Borromean Ring Orbifold by Charlie Gunn
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Image created: 1990
Copyright © 1990 by The Geometry Center, Univerity of Minnesota.  All rights reserved. 
  For permission to use this image, contact permission@geom.math.uiuc.edu.
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Created:  Sat May 22 23:17:46 CDT 1999
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Last modified: Sat May 22 23:17:46 CDT 1999