The first slot machine was invented by Charles Fey in 1895. The gaming machine was named the Liberty Bell, which was the highest paying symbol on the 3-reel slot machine. The slot included just 5 symbols in total, with hearts, diamonds, spades, and horseshoes also featured. The machine was the first to allow automatic payouts. Fey did not gain a patent for his one-armed bandit, and as such, various developers copied his design principles, leading to a flurry of other developers creating similar gaming machines.