No. 80-1520. Argued January 6, 1981. Decided April 24, 1981. Frank W. Stegman, Washington, D.C. (Charles P. O'Connor, Morgan, Lewis Bockius, Washington, D.C., Jack F. Canady, Jack E. Thornton, Jr., Blackwell, Blackwell, Canady Eller, Winston-Salem, N.C., on brief), for petitioner. Christopher W. Katzenbach, N.L.R.B., Washington, D.C. (William A. Lubbers, Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Robert E. Allen, Acting Associate Gen. Counsel, Elliott Moore, Deputy Associate Gen. Counsel
No. 82-3201. Argued January 6, 1983. Decided January 19, 1983. Rehearing and Rehearing In Banc Denied March 11, 1983. James B. Hecht (argued), Richard V. Sica, Thorp, Reed Armstrong, Pittsburgh, Pa., for petitioner. Vivian A. Miller, Mendelssohn V. McLean (argued), William A. Lubbers, Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Robert E. Allen, Associate Gen. Counsel, Elliott Moore, Deputy-Associate Gen. Counsel, N.L.R.B., Washington, D.C., for respondent. Petition for review from the