				    Erratum
   
   In the list of patents which expired on May 08, 1994, due to failure to
pay maintenance fees, in the O.G. of July 19, 1994 and April 11, 1995, the
following Reissue Patent should not have appeared:

Patent Number        Serial Number	   Issue Date	       Filing Date

Re. 33,279 	       07/315,242	    07/31/90	          02/27/89
(4,587,489)	      (06/539,780)	   (05/06/86)		(10/07/83)
   
