LD

Louis A. Derwin

📍 Newaygo, MI: #12 of 27 inventorsTop 45%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #3,810,275 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5361502 Sanitary drum and can opening device — 1994-11-08