DH

David R. Holt

Overall (All Time): #2,341,645 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4695142 Automatic photo imaging system 1987-09-22
4651998 Projectile target game with score keeping apparatus Thomas C. Harms, Jr., Robert Shepherd 1987-03-24