Errata
   
   In the list of patents which expired on April 5, 1998, due to failure
to pay maintenance fees, in the OG of September 15, 1998, Patent Number
5,300,370 should not have appeared since the fee was timely paid.
   
   In the list of patents which expired on April 16, 1998, due to failure
to pay maintenance fees, in the OG of June 24, 1998, Patent Number
4,511,359 should not have appeared since the fee was timely paid.
   
   In the list of patents which expired on July 19, 1998, due to failure to
pay maintenance fees, in the OG of September 29, 1998, Patent Number
5,330,792 should not have appeared since the fee was timely paid.
   
   In the list of patents which expired on July 26, 1998, due to failure to
pay maintenance fees, in the OG of October 6, 1998, Patent Number
5,332,443 should not have appeared since the fee was timely paid.