DC

Daniel Coomer

HO Holland: 1 patents #43 of 76Top 60%
Overall (All Time): #3,322,992 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7520415 Method of repairing a rail Richard F. Kral, Shane A. Mayhill, Matthew Q. Johnson, Mark E. Rovnyak 2009-04-21