DO

David V. Olson

📍 Minneapolis, MN: #17 of 227 inventorsTop 8%
🗺 Minnesota: #129 of 2,022 inventorsTop 7%
Overall (1989): #29,410 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4852185 Protective face shield 1989-08-01
D301249 Camera tripod 1989-05-23