RH

Raymond C. Hartzell

📍 Defiance, OH: #2 of 3 inventorsTop 70%
🗺 Ohio: #1,400 of 5,375 inventorsTop 30%
Overall (2004): #134,747 of 270,089Top 50%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6688148 Manufacturing process for making engine components of high carbon content steel using cold forming techniques Jeffrey A. Buck, Stanley Marchewka 2004-02-10