DM

David L. Mayfield

📍 Bethalto, IL: #19 of 48 inventorsTop 40%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,897,122 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D306332 Barbell weight or similar article — 1990-02-27