Errata

   In the list of patents which expired on October 30, 1996, due to
failure to pay maintenance fees, in the OG of January 7, 1997, Patent
Number 5,118,888 should not have appeared since the fee was timely paid.

   In the list of patents which expired on October 15, 1997, due to
failure to pay maintenance fees, in the OG of December 23, 1997, Patent
Number 5,252,970 should not have appeared since the fee was timely paid.