DH

David B. Harrington

CI Ciba-Geigy: 1 patents #1,572 of 2,867Top 55%
📍 Burnham on Crouch, GB: #5 of 11 inventorsTop 50%
Overall (All Time): #4,055,352 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4396278 Photographic enlarger Malcolm G. Brockwell 1983-08-02