CD

Charles A. Duell

📍 Crestline, OH: #1 of 3 inventorsTop 35%
🗺 Ohio: #378 of 5,836 inventorsTop 7%
Overall (2003): #32,783 of 273,478Top 15%
3
Patents 2003

Issued Patents 2003

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6648576 Hydraulic system and method of operating same Thomas Pfeifer 2003-11-18
6584884 Integral valve-cylinder assembly and fork positioning system 2003-07-01
6547505 Hydraulic system and method of operating same Thomas Pfeifer 2003-04-15