ES

Elbert N. Shawhan

NS Nl Sperry-Sun: 1 patents #3 of 14Top 25%
📍 West Chester, PA: #823 of 1,305 inventorsTop 65%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,053,783 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4390975 Data transmission in a drill string — 1983-06-28