The production of slots has become an increasingly competitive market in recent years. Not long ago, in the 1970’s, approximately 90 percent of the market was owned by one company, Bally Gaming Systems. Therefore, during that time, if you were to play a slot machine it is most likely that you were playing one made by Bally. Now there are well over a dozen slot machine manufacturers in the market, including software designers that create slot machines for online casinos. Following, though not a comprehensive list, is a sample of some of the biggest names in the field of traditional slot machine manufacturing. AC Coin & Slot was founded in 1978…