Security marking method, materials provided with security marks

Details Security marking method, materials provided with security marks Security marking method, materials provided with security marks

1986-08-04

1988-04-05

Cangialosi, Salvatore

Cryptography

Miscellaneous

283 92, H04K 900, B42D 1500

Patent

active

047364254

ABSTRACT:
The invention relates to fiduciary documents and liquids requiring an authentication and a method of marking.
The authentication is effected by producing a synthesis reaction of a fluorescent chelate in or on the materials to be authenticated.

REFERENCES:
patent: 3473027 (1969-10-01), Freeman et al.
patent: 4105333 (1978-08-01), Kaule et al.
patent: 4445225 (1984-04-01), White
patent: 4451521 (1984-05-01), Kaule et al.
patent: 4451530 (1984-05-01), Kaule et al.
patent: 4463970 (1984-08-01), Kaule et al.
patent: 4476382 (1984-10-01), White
patent: 4602264 (1986-07-01), Shoi et al.
patent: 4627642 (1986-12-01), Peronneau et al.
patent: 4655788 (1987-04-01), Jalon

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