Category:Mechanical calculators

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mechanical calculator 
mechanical machine for arithmetic operations
Mechanical-calculator-Brunsviga-15-01.jpg
Wikipedia-logo-v2.svg  Wikipedia
Wikiquote-logo.svg  Wikiquote
Subclass of machine
Start time 1st century BC (Antikythera mechanism)
Time of discovery or invention
  • 1642
Authority control
Wikidata
Blue pencil.svg

Subcategories

This category has the following 61 subcategories, out of 61 total.

A

B

F

L

O

P

S

T

Media in category "Mechanical calculators"

The following 199 files are in this category, out of 199 total.