RK

Ryutaro Kishishita

Overall (All Time): #2,333,569 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4880237 Tokenless slot machine system 1989-11-14
4874173 Slot machine 1989-10-17