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1 янв 1967 г. - Handheld Calculator is invented
Описание:
Texas Instruments, the maker of calculators still today, invents the first handheld calculator
Добавлено на ленту времени:
Technology in Schools
By
Kris Lessinger
2 ноя 2017
0
0
256
Дата:
1 янв 1967 г.
Сейчас
~ 57 г назад
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