WP

William B. Pettifer

📍 Edmonton, CA: #1,480 of 2,912 inventorsTop 55%
Overall (All Time): #3,865,475 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5171110 Apparatus and method for counterboring a pipe Donald A. Pettifer 1992-12-15