DR

David J. Roldness

TP The Pullman: 4 patents #16 of 165Top 10%
Overall (All Time): #1,309,690 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4324189 Car end foldable doors locking device 1982-04-13
4318649 Locking mechanism for B deck of auto-rack railway car Jerry L. Archambeault, Robert L. Barkhimer 1982-03-09
4287833 Auto carrier railway car Felixberto A. Galasan, Thomas H. Watson 1981-09-08
4248557 Railway car counter balanced tilting deck Thomas H. Watson, Gary D. Wonacott 1981-02-03