LP

Leonid I. Parfenov

Overall (All Time): #2,323,637 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4923675 Wear-resistant steel and method of its production Nikolai A. Svidunovich, Alexandr I. Garost, Gennady A. Sorokin, Viktor N. Volkov, Alexandr N. Verbitsky 1990-05-08
4855105 Wear-resistant steel Nikolai A. Svidunovich, Alexandr I. Garost, Gennady A. Sorokin, Viktor N. Volkov, Viktor A. Obiedkov +3 more 1989-08-08