GENERAL KNOWLEDGE

Detailed explanation-1: -Albert T. Marshall, an American inventor, patented the first mechanical refrigerator in 1899. Renowned physicist Albert Einstein patented a refrigerator in 1930 with the idea of creating an environmentally friendly refrigerator with no moving parts and did not rely on electricity.

Detailed explanation-2: -For example, the first mechanical refrigerator received a patent in 1899 and is thanks to a man called Albert T. Marshall.

Detailed explanation-3: -In 1834, the first working vapor-compression refrigeration system was built. The first commercial ice-making machine was invented in 1854. In 1913, refrigerators for home use were invented. In 1923 Frigidaire introduced the first self-contained unit.