United States Patent and Trademark Office OG Notices: 12 October 2004

                                   Erratum

   In the notice of Certificate of Correction appearing in July 8,
2003, delete all reference to Patent No. 6,479,873, issue of June 17,
2003. No certificate of correction was issued for this patent.

                                   Erratum

   In the notice of Certificate of Correction appearing in
December 23, 2003, delete all reference to Patent No. 6,452,406, issue
of December 2, 2003. No certificate of correction was issued for this
patent.