Authenticating and anti-counterfeiting device for currency

Details Authenticating and anti-counterfeiting device for currency Authenticating and anti-counterfeiting device for currency

1982-09-30

1984-09-18

Rubinson, Gene Z.

Registers

Records

235491, 235379, 283901, 283904, G06K 1906

Patent

active

044726279

ABSTRACT:
Currency or other documents or items of value containing a liquid crystal/photovoltaic device which produces a coded display in response to artificial or ambient light. Such a device functions both as an anti-counterfeiting deterrent and also as a means for permitting the man-in-the-street easily to authenticate the validity of a document containing such a device.

REFERENCES:
patent: 4095217 (1978-06-01), Tani et al.
patent: 4298793 (1981-11-01), Melis et al.

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