ENGELHARD INDUSTRIES, INC., Appellant in No. 16231, v. SEL-REX CORPORATION, Appellant in No. 16230. Nos. 16230, 16231.United States Court of Appeals, Third Circuit.Argued May 25, 1967. Decided September 28, 1967. Richard Whiting, Davis, Hoxie, Faithfull Hapgood, New York City (Wallace D. Newcomb, Paul Paul, Philadelphia, Pa., George E. Faithfull, Stanley L. Amberg, Douglas E. Whitney, […]