No. 97-1718 Argued September 10, 1998 Decided July 9, 1999 On Petition for Review and Cross-Application for Enforcement of an Order of the National Labor Relations Board. Norman H. Kirshman argued the cause for petitioner. With him on the briefs was Gary G. Branton. David A. Seid, Attorney, National Labor Relations Board, argued the cause for respondent. With him on the brief were Linda Sher, Associate General Counsel, John D. Burgoyne, Acting Deputy Associate General Counsel, and Fred L. Cornnell