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.
Neff GmbH
In 1957, it introduced the first microwave oven. In 1957, it introduced the first induction cooker (hob) in Europe, marketing it under the revolutionary slogan of "Kochen auf der kalten Platte" (cook on a cold surface). In 1961 it introduced the first integrated cooker units in Europe, built into other kitchen units - the built-in oven. Also in the same year they began selling larger microwave cookers for commercial (catering) uses. By 1970 it was branching out into providing for the full range of units to make up a fitted kitchen. By the early 1970s the cookers were among the first to be controlled with a digital clock.