Aneco Incorporated v. National Labor Relations Board, Region 12, International Brotherhood of Electrical Workers Local 606, Intervenor. International Brotherhood of Electrical Workers, Afl-Cio, Amicus Curiae. National Labor Relations Board v. Aneco Incorporated, International Brotherhood of Electrical Workers Local 606, Intervenor. International Brotherhood of Electrical Workers, Afl-Cio, Amicus CuriaeFiledMar 29, 2002