AA

Arthur I. Anderson

NC North American Car: 3 patents #1 of 2Top 50%
📍 Windom, MN: #3 of 98 inventorsTop 4%
🗺 Minnesota: #18 of 1,035 inventorsTop 2%
Overall (1982): #5,649 of 81,411Top 7%
3
Patents 1982

Issued Patents 1982

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4360295 Combination gravity/pneumatic hopper bottom — 1982-11-23
4353668 Hopper bottom unit — 1982-10-12
4352331 Railway hopper car Louis J. Harvatin 1982-10-05