Category:Mechanical Digital Calculators

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Digital calculators that use moving parts to complete calculations, both human-powered and motorized. No transistors allowed!

Articles in category "Mechanical Digital Calculators"

There are 21 articles in this category.

A

B

Brunsviga 13RK

C

F

I

Index

L

Lightning Adder

M

S

U

Unical Correntator

W

Wizard Calculating Machine

С

Счетмаш Феликс М

Ф

Феликс М

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