434 U.S. 335 98 S.Ct. 651 54 L.Ed.2d 586 NATIONAL LABOR RELATIONS BOARD, Petitioner,v.LOCAL UNION NO. 103, INTERNATIONAL ASSOCIATION OF BRIDGE, STRUCTURAL AND ORNAMENTAL IRON WORKERS, AFL-CIO et al. No. 76-719. Argued Oct. 31, 1977. Decided Jan. 17, 1978. Syllabus by the Court. An employer in the construction business made an agreement with respondent union […]