
    No. 602.
    Walker Process Equipment, Inc. v. Food Machinery & Chemical Corp.
    
      Edward A. Haight and Louis Robertson for petitioner. Sheldon O. Collen and James W. Clement for respondent. Solicitor General Cox for the United States, as amicus curiae, in support of the petition.
   C. A. 7th Cir. Cer-tiorari granted.  