Helvering v. National Grocery Co. ( 1938 )
AR Jones Oil & O. Co. v. Commissioner of Internal Rev. ( 1940 )
Helvering v. Tex-Penn Oil Co. ( 1937 )
Commissioner of Internal Revenue v. Cecil B. De Mille Productions, Inc. ( 1937 )
First Nat. Bank of Boston v. Commissioner of Int. Rev. ( 1933 )
Welch v. Helvering ( 1933 )
Bogardus v. Commissioner ( 1937 )