Nos. 1056, 1057, Dockets 88-4004, 88-4012. Argued May 17, 1988. Decided November 8, 1988. Rolland Castleman, Lessner, Castleman Falkenstein, Manchester, Conn., for petitioner-cross-respondent. Frederick C. Havard, N.L.R.B., Washington, D.C. (Rosemary M. Collyer, Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Robert E. Allen, Associate Gen. Counsel, Aileen A. Armstrong, Deputy Associate Gen. Counsel, Collis S. Stocking, Supervisory Atty., N.L.R.B., Washington, D.C., of counsel), for res