Microwave oven
Japan's Sharp Corporation began manufacturing microwave ovens in 1961. Between 1964 and 1966, Sharp introduced the first microwave oven with a turntable, a feature that promotes convenient even heating of food. In 1965, Raytheon acquired Amana. In 1967, they introduced the first popular home model, the countertop Radarange, at a price of US$495 ($ in dollars).
Partridge Wilson Engineering
In February 1937, they produced what they claimed was the first all-electric mobile fish-and-chips saloon. Beneath a serving counter was an oven, which was fitted with two sets of electric elements. One set could be plugged into a mains electrical socket, and was used to bring the oven up to temperature. Once it was hot, the second set were powered from the vehicle's battery, but the amount of current drawn was somewhat lower, as it only had to maintain the temperature. Two months later, they showcased a mobile milk bar, complete with egg-whisking machines, fountains and a refrigerator, again powered from the vehicle battery. A milk tank held of milk. Later in the year they held a competition for ideas to improve or develop their products. Prizes of 10, 5 and 3 guineas were offered.