No. 92-3616. Argued March 17, 1993. Decided July 12, 1993. Peter Winkler, Supervisory Atty., Margaret Luke (argued), Atty., Jerry M. Hunter, Gen. Counsel, Yvonne T. Dixon, Acting Deputy Gen. Counsel, Nicholas E. Karatinos, Acting Associate Gen. Counsel, N.L.R.B., Washington, D.C., for petitioner. Harriet Lipkin, Debbie Pitcher (argued), Pantaleo Lipkin, Washington, D.C., for respondent. Before: STAPLETON, ROTH and LEWIS, Circuit Judges. OPINION OF THE COURT STAPLETON, Circuit Judge: The National