Federal Circuit February 1930 casesFelt Tarrant Mfg. Co. v. United StatesSpiegel, May, Stern Co. v. United StatesWashington Club v. United StatesBankers' Club of America v. United StatesJefferson Electric Mfg. Co. v. United StatesKelly v. United StatesSwift Co. v. United StatesMilliken v. United StatesLedger Co. v. United StatesOhio Steel Foundry Co. v. United States