BLACK HILLS JEWELRY MANUFACTURING CO., a South Dakota corporation; F.L. Thorpe Company, Inc., a South Dakota corporation; and Stamper Black Hills Gold Jewelry, Inc., a South Dakota corporation, Plaintiffs and Appellants, v. FELCO JEWEL INDUSTRIES, INC., a corporation; South Dakota Gold Company, Inc., a South Dakota corporation; and Johnson Matthey, an international jewelry conglomerate, Defendants […]