EK

Evgeny P. Kovalev

Overall (All Time): #3,916,796 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4976051 Rotary trench excavator Alexandr M. Sushkin, June V. Trubakov, Vladimir N. Shpektorov, Iosif N. Shpektorov 1990-12-11