No. 75-2239. Argued June 7, 1976. Decided November 3, 1976. Francis X. Dee, for petitioner. Robert G. Sewell, Atty., N.L.R.B., Washington, D.C. (John S. Irving, Jr., Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Elliott Moore, Deputy Associate Gen. Counsel, N.L.R.B., Michael K. Schmier, Atty., N.L.R.B., Washington, D.C., on brief, for respondent. Petition for review from the National Labor Relations Board. Before BRYAN, Senior Circuit Judge, CRAVEN, Circuit Judge, and J. CALVITT CLARKE