WH

W. Jack Hardin

PS Progress Rail Services: 1 patents #55 of 125Top 45%
Overall (All Time): #3,013,033 of 4,157,543Top 75%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9415781 Dual engine locomotive Walter E. Earleson, Roy Christopher Fonseca 2016-08-16