DS

Donald E. Stoll

OD Overhead Door: 2 patents #55 of 173Top 35%
Overall (All Time): #2,290,681 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5472306 Retractable vehicle ramp with lift assist Alfred T. Dietrich 1995-12-05
5340267 Retractable vehicle ramp with lift assist Alfred T. Dietrich 1994-08-23