70's vintage calculator
Palabras clave
accounting,
background,
business,
buttons,
calculate,
calculation,
calculating machine,
digit,
digital,
display,
economy,
education,
electronic,
equipment,
finance,
financial,
isolated,
keyboard,
management,
mathematic,
mathematical,
mathematic,
number,
object,
office,
plastic,
tax,
technology,
tool,
work,
science
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