Casio Computer Co., Ltd FX115ESPLUS FX-115ESPLUS Advanced Scientific Calculator, 10-Digit Natural Textbook Display by CASIO, INC.
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A logo of Casio Computer Co., Ltd is pictured at the CP 2016 Camera & Imaging Show on February 25, 2016, in Yokohama, Japan. © Takeshi Sumikura/AFLO/Alamy Live News Stock Photo - Alamy
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