Tax Court October 1989 casesGATWOOD v. CommissionerGumm v. CommissionerAmerican Bus. Serv. Corp. v. Comm'r of Internal RevenueColorado State Chiropractic Soc'y v. Comm'r of Internal RevenueBelk v. Comm'r of Internal RevenueBank of the West v. Comm'r of Internal RevenueEstate of Slater v. Commissioner of Internal Revenue