YR

Yvon Ropars

EF Etat Francais: 1 patents #25 of 156Top 20%
📍 Mours, FR: #2 of 5 inventorsTop 40%
Overall (All Time): #3,987,510 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4714041 Structure of surface effect ship with side walls Robert Jaffre 1987-12-22