No. 95-3501, 95-3831. Submitted October 25, 1996. Filed December 3, 1996. Counsel who presented argument on behalf of the appellant was Daniel R. Hols of Minneapolis, Minnesota. Counsel who presented argument on behalf of the appellee was Joseph A. Oertel of Washington, D.C. Also appearing on the brief were Charles P. Donnelly, Frederick L. Feinstein, Linda Sher, and Aileen A. Armstrong. On Petitions for Review from National Labor Relations Board. Before BOWMAN, HEANEY, and MORRIS SHEPPARD ARNOLD