SK

Stepan E. Koval

Overall (All Time): #4,037,321 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D274524 All-purpose row-crop wheel tractor Oleg Tkachenko, Vladimir Baranov, Alexandr I. Kedik, Valentin A. Artemenko, Vladimir K. Drozdov 1984-07-03