DB

David E. Buttolph

📍 Saint Albans, VT: #1 of 2 inventorsTop 50%
🗺 Vermont: #34 of 182 inventorsTop 20%
Overall (1989): #140,572 of 140,708Top 100%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4796602 Maple syrup vaporizer apparatus with hollow shell recirculation arch Arthur H. Atkinson 1989-01-10