WD

William D. Douglas

📍 Kimberley, ZA: #64 of 178 inventorsTop 40%
Overall (All Time): #3,974,543 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4666212 Metal value recovery Brian Kelsey Loveday, James A. J. Tumily 1987-05-19