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  The first microwave was invented by Percy Spencer on October 8, 1945. When first invented the microwave weighed 750 lb and were over $5,000 to purchase.
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  Radarange is the name that was given for the microwave in a contest.
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  The first microwaves were in the home in 1967 and cost around $500. They were 100 volt.
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  The price of counter top microwaves were decreasing as their capabilities were expanded. Amana is the leading brand for microwaves (picture is of amana)
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  Sales of the microwave oven exceeds gas ranges. By the 70s people were finding out that the microwave was beneficial and worth the risk of radiation
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  52 million US households now own a microwave in their home
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  The microwave is hitting their 40 years in households and consumes more than 90% of the households in America.