KH

Kari von Hertzen

OH Oy Helvar: 1 patents #4 of 6Top 70%
📍 Helsinki, FI: #2,126 of 3,940 inventorsTop 55%
Overall (All Time): #3,769,334 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5410220 Control circuit for drive circuit of an electronic ballast for a discharge lamp 1995-04-25