KS

Karel Johan Schell

Overall (All Time): #2,214,313 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6395191 Method for protecting a paper security document or identification document — 2002-05-28
6098546 Method and device for security printing — 2000-08-08