WF

William C. Friend

📍 Calgary, CA: #2,769 of 5,407 inventorsTop 55%
Overall (All Time): #3,770,765 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5415645 Retractable sheath for hypodermic needle John M. K. Friend 1995-05-16