
    429 A.2d 87
    Fulmer et vir, Appellant v. Brown Machine, etc., et al.
    
      Argued June 9, 1980.
    Richard J. Marusak, for appellants;
    Donald H. Lipson for Brown Machine Division, appellee and James P. Harris, for Fabri-Kal Corporation, appellee.
    Before BROSKY, WATKINS, and CIRILLO, JJ.
    
    
      
       Judge Vincent A. Cirillo, of the Court of Common Pleas of Montgomery County, Pennsylvania, is sitting by designation.
    
   The order of the lower court is hereby affirmed.  