BG

Boris L. Grabchev

📍 Ruse, BG: #53 of 655 inventorsTop 9%
Overall (All Time): #1,682,449 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4484057 Resistance flash butt welding process monitor Nikolai V. Podola, Vadim P. Krivonos, Evgeny I. Dovgodko, Alexandr M. Kobylin 1984-11-20
4415793 Welder for continuous resistance flash-butt welding Nikolai V. Podola, Sergei I. Kuchuk-Yatsenko, Vadim P. Krivonos 1983-11-15
4296305 Machine for continuous flash butt welding Viktor Senderovich Lifshits, Vadim P. Krivonos, Nikolai V. Podola, Vladimir R. Andrianov, Rifkhat M. Shakirov 1981-10-20