TF

Thomas Francis

📍 Fraser, MI: #3 of 6 inventorsTop 50%
🗺 Michigan: #694 of 3,452 inventorsTop 25%
Overall (1989): #50,762 of 140,708Top 40%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4848380 Foundation drain cleaning apparatus and method K. Rand Dykman 1989-07-18