United States Patent and Trademark Office OG Notices: 09 April 2002

                                    Erratum

   In the notice of Certificate of Correction appearing in March
5, 2002 O.G., Vol. 1256 O.G. 17, delete all reference to Patent No.
6,013,666, issue of February 12, 2002, the number was erroneously
mentioned and should be deleted since no certificate of correction was
issued.

                                    Erratum

   In the Official Gazette of March 12, 2002 the Certificates of
Correction appearing under the heading Certificates of Correction were
listed incorrectly as having issued on February 12, 2002. The correct
issue date for these Certificates of Correction is February 19, 2002.