– After 1834 (1914), then bake perfect donation kin is the first to be invented and fabricated the world's first refrigerator has seriously and are also available as well as the first format that can lead to development.
- After 1834, Jacob Perkins was the first to innovate and invent the world's first refrigerator seriously. And can be used as a model that can be taken to further develop it.
Afterwards ad - 1834 Jacob Perkins. Were the first to invent and invented the world"s first refrigerator air seriously And can be used as the first theme to be developed further.