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Electric knife : ウィキペディア英語版 | Electric knife
An electric knife or electric carving knife is an electrical kitchen device used for slicing foods. An electric knife requires less physical effort than an ordinary knife and produces neater slices. The device consists of two serrated blades that are clipped together. When the appliance is switched on, the blades continuously move lengthways to provide the sawing action. In the UK, electric knives were popular in the 1970s and not as popular in today's kitchens. ==Invention== The invention of the electric knife is usually attributed to Jerome L. Murray,〔Agis Salpukas, ("Jerome Murray, 85, a Many-Faceted Inventor" ), obituary, ''New York Times'', 11 February 1998.〕〔Carl W. Hall, ''A Biographical Dictionary'', p.158, Purdue University Press, 2007 ISBN 1557534594.〕 but there are other claimants such as Clem E. Kosterman who filed a patent in 1939.〔("With the inventors" ), ''Popular Science Monthly'', volume 36, no.2, p.22, March 1940 〕〔C. E. Kosterman, ("Power operated knife" ), US patent 2180244, 14 November 1939.〕
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