Erratum

   In the Notice of Certificates of Correction appearing at 1221 O.G. 15,
delete all reference to Patent No. 5,750,619, since no Certificate of
Correction was granted.

   In the Notice of Certificates of Correction appearing at 1218 O.G. 555,
delete Patent No. B4-558,302, the number was erroneously mentioned and
should be deleted.