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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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15 Jun 1967 Jahr - 1967 - An engineer at Texas Instruments begins work on the first handheld calculator.
Zugefügt zum Band der Zeit:
Calculator history
By
Casey
4 Okt 2017
0
0
687
Datum:
15 Jun 1967 Jahr
Jetzt
~ 58 years ago
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