Elspeth Bennett, US2356561A
Educational Device for Demonstrating Nutritional Food and Food Ingredient Comparisons.
Image credit: Bennett, E.. (1943)
On August 22, 1944, Elspeth Bennett of Syracuse, New York, was granted a patent for an educational device that visually demonstrated nutritional values in foods. Her invention used colored, proportioned data shafts on a display board to let students compare the nutrients in different foods and better understand balanced diets.
Date of Application: 29 July 1943
Date of Issuance: 22 August 1944
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