JR

John P. Cornelis de Roo

📍 Gouda, NL: #71 of 160 inventorsTop 45%
Overall (All Time): #3,839,687 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5269633 Tunnel shuttering Willem J. Feijth 1993-12-14