JR

John R. Ricks

DI Dunkley International: 1 patents #3 of 6Top 50%
Overall (All Time): #3,974,486 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4666045 Pit detecting Robert M. Gillespie 1987-05-19