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Everett D PRATT was born 18 July 1916 in Massachusetts, USA
Everett D PRATT was the child of Frank H PRATT and Nellie M SIMMONS and the grandchild of: (paternal) Daniel Webster PRATT and Catherine Elizabeth COHAN (maternal) Richard Bothwick SIMMONS and Inez Mabelle UNKNOWNEverett D PRATT died September 1973
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Discovering the Ancestry of Everett D PRATT: Events, Photos & Historical Records
1916 Birth 18 July 1916
Massachusetts, USA
1934 - The metal beverage can is invented (American Can Co., United States) 1940 - April - 1st electron microscope demonstrated (RCA), Philadelphia, Pennsylvania, USA The microwave oven was invented accidentally in 1945 by Percy Spencer, a Raytheon engineer. While testing a magnetron, he noticed microwaves melted a candy bar in his pocket. Experimenting further, he discovered microwaves could cook food quickly. Raytheon patented the process, and by 1947, they built the first commercial microwave oven, called the 'Radarange.' Initially used in commercial settings, microwaves becomes affordable for home use by the 1960s and 1970s, revolutionizing cooking.
Added: 12/6/2020 11:33:51 AM
- Updated: 12/6/2020 11:33:51 AM
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