WS

William Edward Shelfantook

📍 Edmonton, CA: #9 of 61 inventorsTop 15%
Overall (1989): #43,178 of 140,708Top 35%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4859317 Purification process for bitumen froth Alexander Hyndman, Larry P. Hackman 1989-08-22