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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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15 июн 1967 г. - 1967 - An engineer at Texas Instruments begins work on the first handheld calculator.
Добавлено на ленту времени:
Calculator history
By
Casey
4 окт 2017
0
0
687
Дата:
15 июн 1967 г.
Сейчас
~ 58 г назад
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