A sign panel assembly for use in conjunction with an illuminated sign panel on a merchandise cabinet, such as a vending machine or refrigerated display case includes two elongated transparent framing strips, pieces of double-face tape on the distal ends of each strip, and a flexible sign panel with graphics...http://www.google.ca/patents/US5509225?utm_source=gb-gplus-sharePatent US5509225 - Replaceable sign panel assembly for a merchandise cabinet