DH

Donald L. Herald

📍 Lansing, IL: #44 of 88 inventorsTop 50%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,946,703 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4725045 Slag-retaining plug for metal pouring operations James R. Cutre, Donald K. Herald, John W. Schwer 1988-02-16