Various aspects are directed to a gaming system configured or designed for use with a bar top or table top. In at least one embodiment, the gaming system may include a movable gaming unit, the movable gaming unit which is operable to be lowered below an upper surface of the bar top or table top, and...http://www.google.com.tw/patents/US8118681?utm_source=gb-gplus-share專利 US8118681 - Gaming system having retractable gaming unit
