JW

John F. Wren

📍 Calgary, CA: #2,769 of 5,407 inventorsTop 55%
Overall (All Time): #3,914,516 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4967923 Protective apparatus for compressed gas cylinders — 1990-11-06