RB

Richard Louis Brophy

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Blackduck, MN: #3 of 4 inventorsTop 75%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,955,484 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4757573 Chimney flue scraping apparatus — 1988-07-19