BD

Benjamin Duperthal

Overall (All Time): #2,970,569 of 4,157,543Top 75%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9795860 Roller skate blade and sharpening thereof Leonid B. Rubin, Valery M. Nebusov, Vasili Y. Tarasenko, George Rubin 2017-10-24