RL

Richard Langen

📍 Calgary, CA: #2,769 of 5,407 inventorsTop 55%
Overall (All Time): #3,856,595 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5136862 Computer floppy disc lock — 1992-08-11