MT

Martha Thorpe

📍 Cleveland, OH: #637 of 1,781 inventorsTop 40%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,114,185 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D648392 Multiplication teaching aid set — 2011-11-08
7014468 Visual teaching aid — 2006-03-21