World Pub. Co. v. United States ( 1947 )
Helvering v. National Grocery Co. ( 1938 )
Trico Products Corporation v. McGowan ( 1946 )
Walsh v. Commissioner ( 1974 )
Commissioner of Internal Revenue v. WS Farish & Co. ( 1939 )
McCutchin Drilling Co. v. Commissioner of Internal Rev. ( 1944 )