Federal Circuit October 1975 casesITT ARCTIC SERVICES, INC. v. UNITED STATESUnion Pac. R. Co., Inc. v. United StatesPenn Sec. Life Ins. Co. v. United StatesAgway, Inc. v. United StatesFranklin E. Penny Co. v. United StatesDEL MAR ENGINEERING LABORATORIES v. U.S.Westwood Chemical, Inc. v. United StatesNorthern Helex Company v. United States