GH

Gregory J. H. Hansen

AS American Telephone And Telegraph Company, At&T Information Systems: 1 patents #4 of 16Top 25%
📍 Westminster, CO: #5 of 23 inventorsTop 25%
🗺 Colorado: #215 of 1,224 inventorsTop 20%
Overall (1989): #109,955 of 140,708Top 80%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4827501 Telephone call screening apparatus — 1989-05-02