HELPING THE OTHERS REALIZE THE ADVANTAGES OF SLOT

How did slots appear together to what We all know, Engage in, and revel in now? To answer this problem, we need to go every one of the way back to the primary slot equipment, again in 1891 when Sittman and Pitt developed the primary slot device.slot something into some thing Slot piece A into piece B, taking treatment to keep the two parts at right