Vintage Electronic Calculators:
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Info: The equals sign (or equality sign) is a mathematical symbol used to display the result of a calculation.
It was invented in 1557 by RECORDE Robert.

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Created: 15-nov-2020, Manual-update: 17-nov-2020, Batch-update: 25-feb-2024             

# Pageloads since 15-nov-2020 : 4             

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