RH

Robert S. Hansen

📍 Doylestown, PA: #7 of 48 inventorsTop 15%
🗺 Pennsylvania: #313 of 3,759 inventorsTop 9%
Overall (1989): #17,204 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4853268 Binding hole reinforcement, method and apparatus 1989-08-01
4822446 Apparatus for reinforcing binding holes 1989-04-18