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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
Casio FX-7000GA Scientific Graphing Calculator w/Case Tested Works | eBay
Casio FX-7000G
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Casio FX-7000G
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File:Casio fx-7000G KeyboardUpper.JPG - Wikipedia
Vintage Casio Scientific Graphics Calculator. Fx 7000 GA - Etsy New Zealand