Nos. 13523, 13539. Argued September 19, 1961. Decided December 1, 1961. Melvin J. Welles, Washington, D.C. (Stuart Rothman, Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Herman M. Levy, Atty., N.L.R.B., Washington, D.C., on the brief), for National Labor Relations Board. Herbert A. Simon, New York City (Milton M. Levin, New York City, on the brief), for Harry Landvater and others. Bernard N. Katz, Philadelphia, Pa. (Meranze, Katz Spear, Philadelphia