No. 6617. August 24, 1961. Louis H. Callister, Salt Lake City, Utah (Callister Fullmer, Salt Lake City, Utah, were with him on the brief), for petitioner. Rosanna A. Blake, Washington, D.C. (Stuart Rothman, Dominick L. Manoli, Marcel Mallet-Prevost and Nancy M. Sherman, Washington, D.C., were with her on the brief), for respondent. Before MURRAH, Chief Judge, and BRATTON and BREITENSTEIN, Circuit Judges. BRATTON, Circuit Judge. Utah Plumbing and Heating Contractors Association, with its principal