LJ

Leon Keith Jantzen

CF Canadian Fracmaster: 1 patents #1 of 4Top 25%
📍 Calgary, CA: #14 of 129 inventorsTop 15%
Overall (1994): #100,501 of 165,921Top 65%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5279364 Guide arch for tubing Ross Pilich, Hans J. Brygger, Charles D. Costall 1994-01-18