Assuming you are referring to microwave ovens, Raytheon Co. of the United States filed the patent for the microwave cooking process on 8 October 1945. The first microwave oven model available for sale to the public was the Radarange, which cost the equivalent of about 50,000 2013 US dollars in 1947.
Atom patented the first chainsaw. They were also the ones who manufactured the first patented chainsaw. It was patented in 1972.
The first televisoin was patented in 1922 by Edwin Belin.
In 1846, Elias Howe patented the first sewing machine.
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Radar was patented by Sir Robert Alexander Watson-Watt in April 1935.
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Lionel lukin
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Thomas Welsh
Percy Spencer, an engineer for Raytheon, invented the microwave oven in the early 40s. Raytheon patented it in 1945 and began marketing the Radarange in 1947. The Radarange was six feet tall, weighed 750 pounds, and cost $5,000 ... and didn't sell particularly well.
Please ask a question. JM Brownings first patented pistol is the FN model 1900 patented on April 20, 1897 a .32 caliber automatic pistol.