RC

Robert M. Callahan

IBM: 1 patents #253 of 1,444Top 20%
📍 Cave Spring, VA: #1 of 1 inventorsTop 100%
🗺 Virginia: #200 of 1,067 inventorsTop 20%
Overall (1989): #64,269 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4847605 Picking in a graphics system Anthony Fiore, IV, Edward C. Flickinger, Bruce C. Hempel, Bruce E. Whistance 1989-07-11