Security device

Details Security device Security device

1992-07-24

1993-04-06

Echols, P. W.

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

283 57, 283 58, 283 74, 283113, 283902, 101 31, 101 32, 428916, B42D 1500

Patent

active

051997444

ABSTRACT:
A substrate, such as a banknote or travellers' check, carries a security device including in association at least one embossed transitory image, such as a latent or transient image and an embossed linear area. The arrangement is such that when the embossed region of the substrate is viewed from different angles each image and linear area can be visually discerned.

REFERENCES:
patent: 1299484 (1919-04-01), Lee
patent: 4033059 (1977-07-01), Hutton et al.
patent: 4588212 (1986-05-01), Castagroli
patent: 4715623 (1987-12-01), Roule et al.

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