bn:01747372n
Noun Named Entity
Categories: Mechanical calculators, Russian inventions
EN
Odhner Arithmometer  Brunsviga
EN
The Odhner Arithmometer was a very successful pinwheel calculator invented in Russia in 1873 by W. T. Odhner, a Swedish immigrant. Wikipedia
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EN
The Odhner Arithmometer was a very successful pinwheel calculator invented in Russia in 1873 by W. T. Odhner, a Swedish immigrant. Wikipedia
Russian model of mechanical calculator Wikidata
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