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File:Vintage Casio Model fx-7000G Scientific Calculator, LCD Dot Matrix Display, Made In Japan, World's First Graphing Calculator Available To The Public, Circa 1985 - 1988 (15810483905).jpg - Wikimedia Commons
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Vintage Casio scientific graphics calculator. fx 7000 GA GRAPHICS. made in Japan first in 1987. Fully working. Battery operatedH - Etsy.de
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