WG

Willem H. Groenweg

RC Rca: 1 patents #895 of 1,739Top 55%
📍 Ottenbach, CH: #8 of 16 inventorsTop 50%
Overall (All Time): #4,109,795 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4197557 Brightness control circuit employing a closed control loop Alois Vaclav Tuma, Leopold A. Harwood 1980-04-08