LOCAL 542, INTERNATIONAL UNION OF OPERATING ENGINEERS, AFL-CIO, Petitioner, v. NATIONAL LABOR RELATIONS BOARD, Respondent. No. 14286.United States Court of Appeals, Third Circuit.Argued October 10, 1963. Decided March 13, 1964. Page 851 Abraham E. Freedman, Philadelphia, Pa. (Martin J. Vigderman, Wilfred F. Lorry, Freedman, Landy Lorry, Philadelphia, Pa., on the brief), for petitioner. Leo Maguire, […]