Errata

   In the list of patents which expired on December 6, 1998, due to
failure to pay maintenance fees, in the OG of February 16, 1999, Patent
Number 4,975,182, should not have appeared since the fee was timely paid.

   In the list of patents which expired on January 21, 1996, due to failure
to pay maintenance fees, in the OG of April 2, 1996, Patent Number
5,082,504, should not have appeared since the fee was timely paid.

   In the list of patents which expired on May 2, 1999, due to failure to
pay maintenance fees, in the OG of June 29, 1999, Patent Number
5,411,772, should not have appeared since the fee was timely paid.

   In the list of patents which expired on September 27, 1998, due to
failure to pay maintenance fees, in the OG of December 8, 1998, Patent
Number 5,350,774, should not have appeared since the fee was timely paid.