ROBERT L. GRUCA v. UNITED STATES STEEL CORPORATION, APPELLANT IN No. 73-1083 AND UNITED STEELWORKERS OF AMERICA AND UNITED STEELWORKERS OF AMERICA, LOCAL No. 4889 (DEFENDANTS ON CROSS-CLAIM). Nos. 73-1803, 73-1804.United States Court of Appeals, Third Circuit.Argued March 12, 1974. Decided April 17, 1974. Page 1253 David C. Toomey, Duane, Morris Heckscher, Philadelphia, Pa., for […]