SS

Samuel B. Sheldon

NE Nepsco: 2 patents #2 of 4Top 50%
📍 Marblehead, MA: #185 of 401 inventorsTop 50%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,335,678 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4730871 Adjustable back rest — 1988-03-15
4502728 Portable seat and back rest Jack L. Leach, Scott Harkness 1985-03-05