No. 81-1537. Argued January 8, 1982. Decided April 1, 1982. Carol A. De Deo, Atty., Washington, D.C., with whom William A. Lubbers, Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Robert E. Allen, Acting Associate Gen. Counsel, and Elliott Moore, Deputy Associate Gen. Counsel, Washington, D.C., were on brief, for petitioner. C. Fred Welensky, Boston, Mass., for respondent. Petition from National Labor Relations Board. Before COFFIN, Chief Judge, TIMBERS, Senior Circuit Judge, and BREYER