No. 12903. Argued November 16, 1959. Decided May 4, 1960. Duane B. Beeson, Washington, D.C. (Stuart Rothman, Gen. Counsel, Thomas J. McDermott, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Russell Specter, Washington, D.C., Attorney, N.L.R.B., on the brief), for petitioner. Abraham E. Freedman, Philadelphia, Pa. (Marvin I. Barish, Freedman, Landy Lorry, Philadelphia, Pa., on the brief), for respondent. Before BIGGS, Chief Judge, and GOODRICH and McLAUGHLIN, Circuit Judges. McLAUGHLIN