Viewer

Details Viewer Viewer

1988-12-22

1989-11-21

Peshock, Robert

Card, picture, or sign exhibiting

Photographic transparency viewer, e.g., x-ray viewer

Hand held slide viewer

350250, G02B 2704

Patent

active

048813346

ABSTRACT:
A collapsible, extendable compact information display device includes front, rear, and side rectangular wall panels formed from a unitary blank and joined by self-hinges so as to be transferable between a lay-flat and extended parallelepiped condition. The front wall panel is separably joined to an adjacent side wall panel by a flap having glue or a pressure sensitive adhesive. Information in a highly reduced scale is carried on opposite faces of the rear wall and the separable side wall panels and is selectively viewable through a lens mounted on and registering with a central opening in the front wall panel by adjusting the relationships of the wall panels.

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