National Labor Relations Board, No. 97-3459 v. Sheet Metal Workers' International Association, Local Union No. 19 Associated Buildings and Contractors, Inc., Southeast Pennsylvania, Keystone, Delaware and New Jersey Chapters, Amicus Curiae Sheet Metal Workers' International Association, Local Union No. 19, No. 97-3470 v. National Labor Relations Board, Associated Buildings and Contractors, Inc., Southeast Pennsylvania, Keystone, Delaware and New Jersey Chapters, Amicus CuriaeFiledAug 31, 1998Cited2×