DB

David Barnhart

General Motors: 1 patents #53 of 337Top 20%
📍 Pontiac, MI: #4 of 17 inventorsTop 25%
🗺 Michigan: #416 of 1,972 inventorsTop 25%
Overall (1982): #71,171 of 81,411Top 90%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4317436 Valve stem seal Douglas R. Gates 1982-03-02