Errata

   In the list of patents which expired on December 18, 2000 due
to failure to pay maintenance fees, in the OG of February 20, 2001,
Patent Number 5,170,509 should not have appeared since the fee was
timely paid.

   In the list of patents which expired on December 18, 2000 due
to failure to pay maintenance fees, in the OG of February 20, 2001,
Patent Number 5,584,834 should not have appeared since the fee was
timely paid.