RH

Robert D. Hahn

IT Illinois Bell Telephone: 1 patents #8 of 13Top 65%
📍 Bourbonnais, IL: #174 of 314 inventorsTop 60%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,906,179 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4937850 Programmable automatic call-thru set William F. Borbas, Douglas Alan Hahn 1990-06-26