GS

Grant R. Stephenson

DC Dupont Canada: 1 patents #47 of 133Top 40%
📍 Deep River, CA: #75 of 147 inventorsTop 55%
Overall (All Time): #4,074,298 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4344711 Self-wiping multiple screw element mixer John A. Kendall, Ernest Keith Marchildon 1982-08-17