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/img/iea/Z3G8yRL6mE/brief-history-calculators.jpg "The Calculators Brief History: When was the calculator invented")
The Calculators Brief History: When was the calculator invented
The Calculators Brief History: When was the calculator invented
1980s Sharp EL-545H Solar Scientific Calculator 10 Digits w Case Japan - Vinty
calculator was invented in Japan in 1970 Answers - CodyCrossAnswers.org
