A display is releasably mounted on the outside of an enclosure. The display may be released from the enclosure upon gaining access to the inside of the latter. In a preferred embodiment, the display is a sign, and the enclosure is a vending machine. The sign includes a rear panel, which is secured to...http://www.google.ca/patents/US6128842?utm_source=gb-gplus-sharePatent US6128842 - Advertising display panel
