Calculator
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Leibniz Step Reckoner
The first mechanical calculator able to add, subtract, multiply, and …
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Added 23 Jun
·
Upd 23 Jun
·5 min
Pascaline (Pascal's Calculator)
A 1642 mechanical adding machine that used geared wheels to add and …
History
Added 23 Jun
·
Upd 23 Jun
·5 min
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