AE

Albert D. Ehrenfried

📍 Maynard, MA: #3 of 13 inventorsTop 25%
🗺 Massachusetts: #582 of 2,831 inventorsTop 25%
Overall (1989): #133,769 of 140,708Top 100%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4816799 Resistive material level sensor Michael D. Dabrowski 1989-03-28