The Pocket Calculator Race
Descrição
Handheld Electronic Calculators
Electronic Calculators—Handheld National Museum of American History
A Brief History of Calculators in the Classroom
Without the Great Calculator Race of the 1970s, there would be no iPhone
HNF - Desk and pocket calculators – Electronic mass products
The Pocket Calculator Race
1970s Casio Micro-mini Calculator Pocket Calculator in the
This is the Story of the 1970s Great Calculator Race
Milestones:Development of the HP-35, the First Handheld Scientific Calculator, 1972 - Engineering and Technology History Wiki
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por adulto (o preço varia de acordo com o tamanho do grupo)
