Nos. 90-6340, 90-6539. Argued July 18, 1991. Decided August 5, 1991. Rehearing and Rehearing En Banc Denied September 18, 1991. Keith A. Ashmus (argued), Carl H. Gluek, Thompson, Hine Flory, Cleveland, Ohio, for petitioner, cross-respondent. Aileen A. Armstrong, Deputy Associate Gen. Counsel, Charles P. Donnelly, Jr., John C. Truesdale, Executive Secretary, Margaret E. Luke (argued), N.L.R.B., Office of the Gen. Counsel, Washington, D.C., Frederick Calatrello, Director, Cleveland, Ohio, for respondent