
    No. 638.
    Avco Manufacturing Corp. et al. v. Hazeltine Research, Inc.
    
      Floyd H. Crews, Charles M. Hogan and Morris Relson for petitioners. Laurence B. Dodds, Miles D. Pillars, Philip F. LaFollette, Leonard A. Watson and M. Hudson Rathburn for respondent.
   C. A. 7th Cir. Certiorari denied.  