CB

Charles E. Barton

NI Nl Industries: 1 patents #92 of 213Top 45%
Overall (All Time): #3,996,212 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4591226 Annular electrical connectors for drill string Hoke S. Hargett, William D. Boles 1986-05-27