Welch v. Helvering , 54 S. Ct. 8 ( 1933 )
Gregory v. Helvering , 55 S. Ct. 266 ( 1935 )
United States v. United States Gypsum Co. , 68 S. Ct. 525 ( 1948 )
United States v. Parke, Davis & Co. , 80 S. Ct. 503 ( 1960 )
Commissioner v. Duberstein , 80 S. Ct. 1190 ( 1960 )
United States v. Generes , 92 S. Ct. 827 ( 1972 )
Jackson v. Commissioner , 59 T.C. 312 ( 1972 )