AR

Alfred C. Roth

📍 Ann Arbor, MI: #27 of 244 inventorsTop 15%
🗺 Michigan: #263 of 3,452 inventorsTop 8%
Overall (1989): #31,328 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4883001 Picnic table cover 1989-11-28
4879929 Tapper/threader assembly 1989-11-14