Nos. 503, 266, Docket 93-4055, 93-4071. Argued October 6, 1993. Decided February 24, 1994. Nancy J. Gottfried, National Labor Relations Board, Washington, D.C. (Paul J. Speilberg, Deputy Assistant General Counsel, Jerry M. Hunter, General Counsel, Yvonne T. Dixon, Acting Deputy General Counsel, Nicholas E. Karatinos, Acting Associate General Counsel, Aileen A. Armstrong, Deputy Associate Counsel, National Labor Relations Board, Washington, D.C., of counsel), for petitioner/cross-respondent. Mary