KK

Knut Einar Kopperud

📍 Oslo, NO: #1,297 of 2,623 inventorsTop 50%
Overall (All Time): #2,735,848 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11051622 Back rest to be used with seat or chair — 2021-07-06