Microwave oven
In 1947, Raytheon built the "Radarange", the first commercially available microwave oven. It was almost tall, weighed and cost about US$5,000 ($ in dollars) each. It consumed 3 kilowatts, about three times as much as today's microwave ovens, and was water-cooled. The name was the winning entry in an employee contest. An early Radarange was installed (and remains) in the galley of the nuclear-powered passenger/cargo ship NS "Savannah". An early commercial model introduced in 1954 consumed 1.6 kilowatts and sold for US$2,000 to US$3,000 ($ to $ in dollars). Raytheon licensed its technology to the Tappan Stove company of Mansfield, Ohio in 1952. They tried to market a large 220 volt wall unit as a home microwave oven in 1955 for a price of US$1,295 ($ in dollars), but it did not sell well.
Svea 123
Svea stoves were first made by C.R. Nybergs Lödlampfabrik, which also manufactured blowtorches as well as other machinery and equipment. Founded by Carl Nyberg, the firm later became one of the largest industries in Sundbyberg, Sweden. In 1922, the business was taken over by Max Sievert, an early associate of Nyberg's, and renamed Sieverts Lödlampfabrik (later known as Sievert AB). The Svea 123, introduced in 1955, is considered to be the first compact backpacking white gas stove and one of the most popular camping stoves ever made. Its distinctive "roaring" sound has been likened to that of a jet engine at takeoff. In 1969, the Svea brand was acquired by Optimus, another Swedish manufacturer of portable stoves, which has continued production of the Svea 123 to the present day. Because of its simple design and reputation for dependable performance, even under extreme conditions, the Svea 123 enjoys a devoted following.