FP

Fedor K. Porkhun

📍 Ruse, BG: #91 of 655 inventorsTop 15%
Overall (All Time): #2,254,534 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5979738 Machine for flash-butt welding of rails Sergei I. Kuchuk-Yatsenko, Vassilii A. Sakharnov, Valerii G. Krivenko, Mikhail V. Bogorskii, Victor N. Golovachev +4 more 1999-11-09
4490081 Arrangement for removing burrs in butt resistance welding of workpieces Sergei I. Kuchuk-Yatsenko, Valery G. Krivenko, Mikhail V. Bogorsky, Ivan L. Lazebny, Vasily A. Sakharnov +1 more 1984-12-25