Who invented the AGA cooker and was instrumental to the success of AGA AB?
AGA cooker The AGA cooker is a heat storage stove and cooker, which works on the principle that a heavy frame made of cast iron can absorb heat from a relatively low-intensity but continuously burning source, and the accumulated heat can then be used for cooking. Originally heated by slow-burning coal, the Aga cooker was invented in 1922 by the Nobel Prize–winning Swedish physicist Gustaf Dalén (1869–1937), who was employed first as the chief engineer of the Swedish AGA company (Swedish "Aktiebolaget Svenska Gasaccumulator", English "Swedish Gas Accumulator, Limited"). The cookers were first imported to Britain in 1929, and were first manufactured there under licence in the early 1930s. The cast-iron parts were first cast at the Coalbrookdale foundry in the 1940s, where they are still made by the Aga Rangemaster Group.
McCormick family The McCormick family of Chicago and Virginia is an American family of Scots-Irish descent that attained prominence and fortune starting with the invention of the McCormick Reaper, a machine that revolutionized agriculture, helped break the bonds of slavery, and established the modern grain trade by beginning the mechanization of the harvesting of grain. Through the McCormick Harvesting Machine Company and later, the International Harvester Company and other investments, the McCormicks became one of the wealthiest families in America. The name became ubiquitous in agriculture starting in the 19th century and the press dubbed the McCormicks the "Reaper Kings". Later generations expanded into media and publishing (Tribune Company), finance (William Blair & Company), and real estate (McCormick Estate). Various family members were well known as civic leaders. They are descended from an influential leader of modern agriculture, inventor Robert McCormick, Jr. (1780–1846), and Mary Ann "Polly" Hall of Steeles Tavern, Virginia.