JF

Jean Franssen

📍 Ougrée, BE: #4 of 6 inventorsTop 70%
Overall (All Time): #4,120,086 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4223573 Automatic speed-changing system for heavyduty automotive equipment — 1980-09-23