Microwave oven
The development of the cavity magnetron in the UK made possible the production of electromagnetic waves of a small enough wavelength (microwaves). American engineer Percy Spencer is generally credited with inventing the modern microwave oven after World War II from radar technology developed during the war. Named the "Radarange", it was first sold in 1946. Raytheon later licensed its patents for a home-use microwave oven that was first introduced by Tappan in 1955, but these units were still too large and expensive for general home use. Sharp Corporation introduced the first microwave oven with a turntable between 1964 and 1966. The countertop microwave oven was first introduced in 1967 by the Amana Corporation. After Sharp introduced low-cost microwave ovens affordable for residential use in the late 1970s, their use spread into commercial and residential kitchens around the world. In addition to their use in cooking food, types of microwave ovens are used for heating in many industrial processes.
Kenwood Chef
Ken Wood began trading as Woodlau Industries Ltd in 1947. His aim was to produce luxury items that would quickly be seen as necessities. He began marketing a toaster and a food mixer with two beaters. The original mixer marketed as "The Kenwood Electric Food Mixer", designed in 1947 was very similar (possibly too similar) to the Sunbeam Mixmaster Model 3, an American mixer made between 1936 and 1939, and he faced serious competition and possibly objection. He completely redesigned the mixer, which was then launched at the Ideal Home Exhibition in London in March 1950. This mixer was no longer just a mixer, as he had added several other functions, and so he called it the Kenwood Electric Chef. It sold for £19 10s. 10d. (£19.54).