Nos. 86-5107, 86-5157. Argued December 9, 1986. Decided June 18, 1987. Jonathan M. Norman (argued), Vorys, Sater, Seymour and Pease, Cincinnati, Ohio, for petitioner, cross respondent. Elliott Moore, Deputy Associate Gen. Counsel, N.L.R.B., Washington, D.C., Karen Cordry (argued), John Elligers, Bernard Levine, Regional Director, Region 8, NLRB, Cleveland, Ohio, for respondent, cross petitioner. Paul Alan Levy (argued), Public Citizen Litigation Group, Washington, D.C., amicus curiae intervenor.