Denman v. Brumback ( 1932 )
Commissioner of Internal Revenue v. Green ( 1942 )
Commissioner of Internal Revenue v. Hoffman ( 1941 )
A. J. Industries, Inc. v. United States ( 1974 )
Helvering v. Jones ( 1941 )
Lucas v. American Code Co. ( 1930 )
Gerhard v. Stephens ( 1968 )