DB

David C. Barker

📍 Oak Park, MI: #2 of 11 inventorsTop 20%
🗺 Michigan: #694 of 3,452 inventorsTop 25%
Overall (1989): #124,009 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4831916 Piston assembly Keith V. Leigh-Monstevens, Leslie P. Branum 1989-05-23