DB

Donald M. Barnhart

PA Pangborn: 1 patents #3 of 14Top 25%
📍 Martinsburg, WV: #40 of 75 inventorsTop 55%
🗺 West Virginia: #1,664 of 3,425 inventorsTop 50%
Overall (All Time): #3,955,505 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4757648 Rocker barrel configuration James H. Carpenter 1988-07-19