Hidden entry system and image-developing device therefor

Details Hidden entry system and image-developing device therefor Hidden entry system and image-developing device therefor

B - Operations, Transporting

41

M

B41M 5/155 (2006.01) B41M 5/124 (2006.01) A63F 3/06 (2006.01)

Patent

CA 2149946

A hidden entry system comprises a document having a first substrate bearing a localized latent image spaced apart from a removable image-developing device comprising a second substrate having a first surface and a second surface, the first surface of the second substrate bearing a chromogenic composition comprising an image- forming co-reactant, the image-forming co-reactant being a chromogen or a color developer, the second surface of the second substrate bearing a pressure-sensitive adhesive. The image developing device is in superposed relation with the first substrate with the pressure sensitive coating being releasably attached to the first substrate.

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