United States Patent and Trademark Office OG Notices: 21 October 2003

                                   Erratum

   In the notice of Certificate of Correction appearing in
February 19, 2002 O.G., delete all reference to Patent No. 6,087,870
issue of January 29, 2002, the number was erroneously mentioned and
should be deleted since the certificate of correction was not issued.


                                   Erratum

   In the notice of Certificate of Correction appearing in
February 12, 2002 O.G., delete all reference to Patent No. 6,087,870
issue of January 22, 2002, the number was erroneously mentioned and
should be deleted since the certificate of correction was not issued.


                                   Erratum

   In the notice of Certificate of Correction appearing in
October 16, 2001 O.G., delete all reference to Patent No. 6,087,870
issue of October 16, 2001, the number was erroneously mentioned and
should be deleted since the certificate of correction was not issued.