DR

David J. Roldness

TP The Pullman: 2 patents #2 of 27Top 8%
📍 San Diego, CA: #16 of 222 inventorsTop 8%
🗺 California: #320 of 6,198 inventorsTop 6%
Overall (1982): #15,159 of 81,411Top 20%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

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