DF

David Field

HG Harris Graphics: 1 patents #2 of 4Top 50%
📍 Seattle, WA: #62 of 333 inventorsTop 20%
🗺 Washington: #241 of 1,406 inventorsTop 20%
Overall (1989): #123,314 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4854234 Ink fountain closure system David Crowell Emery, Derek C. Leck 1989-08-08