When was the world's first refrigerator invented?

In 1834, American engineer Jacob Perkins invented the world's first compression refrigeration device, which was the prototype of the modern compression refrigeration system. In the same year, Perkins received the first freezer patent issued in the United Kingdom. In 1913, the world's earliest household refrigerator was developed in Chicago, USA. This kind of refrigerator named "Dumer" brand has a wooden shell and a compression refrigeration system installed inside, but the effect is not ideal. In 1918, engineer Coberlandt of the American KE-LVZNATOR company designed and manufactured the world's first mechanical refrigeration household automatic refrigerator. This kind of refrigerator is crude and bulky, with a wooden casing, a mixture of seaweed and sawdust as insulation, and a water-cooled compressor that makes a lot of noise. However, its birth announced that the development of household refrigerators has entered a new stage.