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bn:01228890n
Noun Concept
Categories: Mechanical calculators
EN
pinwheel calculator
EN
A pinwheel calculator is a class of mechanical calculator described as early as 1685, and popular in the 19th and 20th century, calculating via wheels whose number of teeth were adjustable. Wikipedia
Definitions
Relations
Sources
EN
A pinwheel calculator is a class of mechanical calculator described as early as 1685, and popular in the 19th and 20th century, calculating via wheels whose number of teeth were adjustable. Wikipedia
A type of early mechanical arithmetic machine Wikipedia Disambiguation
Type of mechanical calculator Wikidata
IS A
mechanical calculator
HAS KIND
Odhner Arithmometer
Wikipedia
EN
pinwheel calculator
Wikidata
EN
pinwheel calculator

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