LT

Leonard A. Treptow

📍 Greenbelt, MD: #129 of 290 inventorsTop 45%
🗺 Maryland: #19,431 of 35,612 inventorsTop 55%
Overall (All Time): #3,978,565 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4680740 Audio aid for the blind — 1987-07-14