NATIONAL LABOR RELATIONS BOARD, PETITIONER, v. INTERNATIONAL UNION OF ELEVATOR CONSTRUCTORS, AFL-CIO, AND LOCAL UNION 3, INTERNATIONAL UNION OF ELEVATOR CONSTRUCTORS, AFL-CIO, RESPONDENTS. No. 88-2354.United States Court of Appeals, Eighth Circuit.Submitted May 10, 1989. Decided April 27, 1990. Page 1298 [EDITORS’ NOTE: THIS PAGE CONTAINS HEADNOTES. HEADNOTES ARE NOT AN OFFICIAL PRODUCT OF THE COURT, […]