Patents Examined by W. R. Burke
  • All-purpose row-crop wheel tractor
    Patent number: D274524
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: July 3, 1984
    Inventors: Stepan E. Koval, Oleg D. Tkachenko, Vladimir V. Baranov, Alexandr I. Kedik, Valentin A. Artemenko, Vladimir K. Drozdov