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After World War II in 1946, Percy Spencer had made what we now know as the microwave oven. It was first called the Radarange that was mainly made for the use of commercial use or restaurants. I was the size of an oven and cost around $5,000.
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After about 1 year Amana Corporation came out with a low-cost microwave for residential use.
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By 1975, sales of microwave ovens would, for the first time, exceed that of gas ranges. The next year Japan had a percentage 17% of residents had a microwave. In the US the percentage was just 4% but at some point in 1976 it jumped all the way to 14% of residents in the US had a microwave
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In 1986, roughly 25% of residents in the US had owned a microwave oven
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The U.S Bureau of Labor Statistics reported that over 90% of US residents had a microwave oven
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In 2016 everyone in the US had some kind of microwave if it was the high end or a low-cost one.
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The company Sharp had created the microwave drawers in 2017