RF

Richard A. Ferreira

📍 Providence, RI: #804 of 1,397 inventorsTop 60%
🗺 Rhode Island: #3,444 of 6,211 inventorsTop 60%
Overall (All Time): #4,103,881 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4182497 Gutter cleaning device Manuel J. Brito 1980-01-08