DD

Donald L. Dovala

AL Auto-Trol Limited: 1 patents #11 of 37Top 30%
🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%
Overall (All Time): #3,980,257 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4687031 Valve control with mechanical memory Paul R. Goudy, Jr., William G. Weekley, Thomas Olszewski 1987-08-18