RP

Roland Proulx

HY Hydro-Quebec: 2 patents #114 of 463Top 25%
📍 Ansonville, CA: #1 of 7 inventorsTop 15%
Overall (All Time): #2,305,220 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5259482 Retractable shutter for continuously covering the pit of a movable vehicle lift post Roger Sirois, Marc Boudreault 1993-11-09
4458448 Motorized pivoting gate with vertical lifting 1984-07-10