Smith v. Higgins , 102 F.2d 456 ( 1939 )
Commissioner of Internal Revenue v. Griffiths , 103 F.2d 110 ( 1939 )
Lucas v. Earl , 50 S. Ct. 241 ( 1930 )
Minnesota Tea Co. v. Helvering , 58 S. Ct. 393 ( 1938 )
Corliss v. Bowers , 50 S. Ct. 336 ( 1930 )
Gregory v. Helvering , 55 S. Ct. 266 ( 1935 )