WM

Walter Mantegazza

Overall (All Time): #2,245,071 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5868432 Document with anti-counterfeiting means to prevent reproducibility by photocopying — 1999-02-09
5855989 Document with anti-forgery and anti-falsification means — 1999-01-05