Errata

  In the list of patents which expired November 16, 1994, due to failure
to pay maintenance fees, in the O.G. of January 24, 1995, the following
patent should not have appeared:

Patent No.           Serial No.         Issue Date           Filing Date

4,969,213            07/329,295          11/13/90               03/27/89


                                    Errata

  In the list of patents which expired on January 03, 1993, due to
failure to pay maintenance fees, in O.G. of March 16, 1993, the
following patent should not have appeared:

Patent No.           Serial No.         Issue Date           Filing Date

4,794,931            06/834,893          01/03/89               02/28/86