DM

David J. Maupin

📍 Muldrow, OK: #5 of 10 inventorsTop 50%
🗺 Oklahoma: #6,781 of 12,736 inventorsTop 55%
Overall (All Time): #3,916,409 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4974862 Hand truck with safety device — 1990-12-04