A slot machine's standard layout features a screen displaying three or more reels that "spin" when the game is activated. Hopper fill slip is a document used to record the replenishment of the coin in the coin hopper after it becomes depleted as a result of making payouts to players. Before , slot machines were only in casinos and small shops, but later slot clubs began appearing all over the country. The casinos lease the machines rather than owning them outright. Sittman and Pitt of Brooklyn , New York , developed a gambling machine in that was a precursor to the modern slot machine.
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