DH

Dorothy M. Helm

📍 Decatur, IL: #242 of 423 inventorsTop 60%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,404,353 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D557927 Collapsible table attached to storage shelves Charles W. Helm 2007-12-25