DG

David Gravelle

NS National Business Systems: 1 patents #10 of 17Top 60%
📍 Great Houghton, GB: #1 of 1 inventorsTop 100%
Overall (All Time): #3,970,591 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4651642 Credit card imprinter with disabling means — 1987-03-24