DL

Daniel L. Leffel

📍 Stratford, WI: #7 of 18 inventorsTop 40%
🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%
Overall (All Time): #3,863,928 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5165350 Underground wood burning furnace apparatus — 1992-11-24