Where did the BAR on slot machines come from?

bar bar slotWhat does the BAR symbol mean on a slot machine? The BAR symbol orinated from the Bell-Fruit Gum Company, which used the logo to represent their brand onDiscover Bar Bar Black Sheep Slot Machine by Microgaming with 1 Pays and Reels ️ Play the Bar Bar Black Sheep Slot for FREE with 95.32% RTP, Free Spins