Nos. 83-5785, 84-5283 and 84-5174. Argued March 14, 1985. Decided April 30, 1985. Elliott Moore, Deputy Associate Gen. Counsel, Frederick Havard (argued), N.L.R.B., Washington, D.C., Bernard Levine, Director, Region 8, N.L.R.B., Cleveland, Ohio, for petitioner in all cases. Donald A. Knowlton, Region 8, N.L.R.B., Cleveland, Ohio, for petitioner in No. 84-5283. Don T. Carmody (argued), Carmody DiRienzo, New York City, for respondents in all cases. Robert Leonard, Cory, Leonard, Witter Cheney, Lima