C. A. 7th Cir. [Certiorari' granted, ante; p. 864.] Motion of Kawneer Co., Inc., for leave to file a brief as amicus curiae granted.
C. A. 7th Cir. [Certiorari' granted, ante; p. 864.] Motion of Kawneer Co., Inc., for leave to file a brief as amicus curiae granted.