Singer v. United States , 65 S. Ct. 282 ( 1945 )
Higgins v. Smith , 60 S. Ct. 355 ( 1940 )
Commissioner v. Court Holding Co. , 65 S. Ct. 707 ( 1945 )
Gregory v. Helvering , 55 S. Ct. 266 ( 1935 )