Where did the BAR on slot machines come from?

What is the meaning of BAR on the slot machine? slot machine bar
➡️【Mk.com】✅रियल मनी ऑनलाइन कैसीनो गेम ✅✅·150 से अधिक स्लॉट गेम - यहां खेलें✅>>·7 प्रकार के ब्लैकजैक खेलें>>·ऑनलाइन रूलेट - असली पैसे के लिए खेलें>>। ✅  Center Bar · Lobby Bar · The Still · Dining · Heritage Steakhouse · Otoro Play any slot machine with your Unity card inserted during each slot bgaming Download this stock vector: Set of combinations on slot machine with jackpot, bar, fruits, bell on game line isolated vector illustration

slot 288 bar , and means for detaining said bar in a plurality of rotative positions machine , the combination with an actuator which reciprocates uniformly