UNITED STATES OF AMERICA v. DEVIL’S HOLE, INC. UNITED STATES OF AMERICA v. HECLA MACHINERY AND EQUIPMENT COMPANY, INC. No. 84-1046.United States Court of Appeals, Third Circuit.Argued September 10, 1984. Decided November 9, 1984. Page 896 K. Robert Conrad (argued), Charles J. Bloom, Ronald H. Levine, Conrad, Kerr, Bloom, Hitchner O’Brien, Philadelphia, Pa., for appellants. […]