Grade school dropout Percy L. Spencer, holder of around 300 patents, is largely remembered as a one-shot celebrity for having invented the microwave oven.
Spencer worked for many years at Raytheon Company. His first microwave oven, completed in 1945, was large and bulky. It was initially used in restaurants, ships and trains.
A small model for home use, the Radarange, was first offered to the public in 1965.
The prolific Spencer died in 1970.
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