An automatic vending machine, or a slot machine, has a display plate provided at the rear wall of a sample room which is covered by a transparent window panel fitted in a front door of the machine. A plurality of vertically elongate display strips arranged side by side at desired intervals adjacent to...http://www.google.de/patents/US5022172?utm_source=gb-gplus-sharePatent US5022172 - Display apparatus for an automatic vending machine
