No. 86-1192. Argued March 2, 1987. Decided July 29, 1987. Don Terrance Carmody (Carmen M. DiRienzo; Carmody DiRienzo, on brief) for respondent. Marilyn Elaine Patrick, N.L.R.B. (Rosemary M. Collyer, Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Robert E. Allen, Associate Gen. Counsel, Elliott Moore, Deputy Associate Gen. Counsel, Peter Winkler, Supervisory Atty., Sandra Elligers, on brief), for petitioner. Robert S. Giolito; Stanford, Fagan and Giolito, on brief, for intervenor. Appeal