JD

John W. Duke

📍 Stockbridge, GA: #29 of 126 inventorsTop 25%
🗺 Georgia: #13,651 of 35,610 inventorsTop 40%
Overall (All Time): #2,362,349 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4384624 Earth boring head John A. Duke 1983-05-24
4306626 Hydraulic earth boring machine John A. Duke 1981-12-22