Abstract: A device for displaying an article comprising a support having first and second apertures, a U-shaped member having first and second legs received in respective ones of said first and second apertures, said legs each having unidirectional teeth disposed thereon for engaging sides of said first and second apertures such that the legs can be translated in the apertures in a first direction to secure the article between the legs by a first force applied in the first direction but cannot be moved in a direction opposite the first direction by an oppositely applied force unless a second force perpendicular to the first force is applied to the legs while applying the force opposite the first force.

Abstract: A display device and protector suitable for holding a card or card-like object comprising a transparent first panel and a transparent second panel connected together along a common hinge line, the first panel having a recessed portion for receiving the card to be held, the recessed portion having a bottom surface for contacting a first surface of the card, the second panel having a projecting surface for engaging a second surface of the card, the projecting surface having a height above a base surface of the second panel which is less than a depth of the recessed portion of the first panel by the approximate thickness of the card and further comprising a mating projection and recess disposed in side walls of the recessed portion of the first panel and the projecting surface of the second panel for maintaining the first and second panels in a closed position after the first and second panels are moved toward each other by folding along the common hinge line whereby the bottom surface engages the first surface

Abstract: A bracket adapted to be secured to a perforated wall comprising a first member extending generally in a first direction, a second pivotal member disposed on the first member having an L-shaped section having two legs, the pivotal member having two positions, in a first position, a first of the two legs arranged farthest from the pivotal member being disposed generally horizontally for insertion into a perforation of the wall, and in a second position, the first of the two legs being disposed generally vertically after the first leg has been inserted into a perforation in the wall for securing the first member to the wall by the influence of a gravity, whereby the first member extends outwardly from the wall in the first direction.