WH

Walter R. G. Haggstrom

📍 Portsmouth, RI: #161 of 296 inventorsTop 55%
🗺 Rhode Island: #3,444 of 6,211 inventorsTop 60%
Overall (All Time): #4,085,800 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4256510 Method of scraping corners David Thompson 1981-03-17