Inventor

PAULI GUENTER

2 patents

Patents

2 patents

US4435834AMar 6, 1984

Method and means for determining the state and/or genuineness of flat articles

GAO GES AUTOMATION ORG135 citations92

US4057919ANov 15, 1977

Laminated data carrier protected against forgery, particularly identification card

GAO GES AUTOMATION ORG14 citations71