DB

Darrow R. Beaton

📍 Minneapolis, MN: #10 of 128 inventorsTop 8%
🗺 Minnesota: #50 of 1,035 inventorsTop 5%
Overall (1982): #15,357 of 81,411Top 20%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D264500 Heat retrieval unit 1982-05-18
D264501 Heat retrieval unit for installation into a flue duct 1982-05-18