DJ

Duncan M. Johnson

📍 Barton-upon-Humber, GB: #1 of 4 inventorsTop 25%
Overall (All Time): #3,937,259 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4864519 Information transmission system David Appleby 1989-09-05