No. 399, Docket 86-4031. Argued November 14, 1986. Decided April 30, 1987. Margaret Bezou, Washington, D.C. (Michael David Fox; Rosemary M. Collyer, 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., of counsel), for petitioner. Steven S. Goodman, New York City (Roger S. Kaplan, Jackson, Lewis, Schnitzler Krupman, New York City, of counsel), for respondent. Appeal from the National