United States Patent and Trademark Office OG Notices: 29 April 2003

                                   Erratum

   In the notice of Certificate of Correction appearing in
December 10, 2002, delete all reference to Patent No. 6,396,596, issue
of November 19, 2002, the number was erroneously mentioned and should
be vacated since no certificate of correction was granted.


                                    Erratum

   In the notice of Certificate of Correction appearing in
February 4, 2003, delete all reference to Patent No. 6,148,674, issue
of January 14, 2003, the number was erroneously mentioned and should be
vacated since no certificate of correction was granted.