436 A.2d 1228 Philadelphia Federation of Teachers, Local No. 3 et al., Appellants v. Arthur W. Thomas et al., Appellees. Philadelphia Federation of Teachers, Local No. 3, AFT, AFL-CIO, Appellant v. Board of Education of the School District of Philadelphia, et al., Appellees. Commonwealth Court of Pennsylvania.Argued October 19, 1981 October 27, 1981. Public employees […]