HJ

Henry D. Jeffries, Jr.

AI Avtec Industries: 1 patents #9 of 12Top 75%
📍 Naperville, IL: #1,846 of 3,051 inventorsTop 65%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,048,567 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
RE31147 Ground fault and fire detector system William F. Helwig, Jr. 1983-02-08