Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 4/12/96

Patent Number   Serial Number    Filing Date     Issue Date   Granted Date

4,420,864        06/237,618        02/24/81        12/20/83       04/17/96
4,600,706        06/552,771        11/17/83        07/15/86       04/15/96
4,634,384        06/576,432        02/02/84        01/06/87       04/17/96
5,038,780        07/188,337        04/29/88        08/13/91       04/17/96
5,077,932        07/544,411        06/27/90        01/07/92       04/17/96
5,080,426        07/503,431        03/30/90        01/14/92       04/18/96