No. 18932. November 16, 1971. Rehearing Denied December 14, 1971. Marcel Mallet-Prevost, Asst. Gen. Counsel, Avrum Marcus Goldberg, Atty., N.L.R.B., Washington, D.C., Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, William F. Wachter, Susan J. Sherman, Attys., N.L.R.B., for petitioner. Robert C. Canfield, Carl E. Enggas, Allan L. Bioff, Kansas City, Mo., for respondent; Watson, Ess, Marshall Enggas, Kansas City, Mo., of counsel. Before KILEY and FAIRCHILD, Circuit Judges