page_title: Odhner Arithmometer
section_title: Legacy
hierarchical_section_title: Odhner Arithmometer / Legacy
caption_attribution_description: English: A mechanical calculator. Original Odhner Arithmos Type 5. Svenska: En mekanisk räknesnurra. Original Odhner Arithmos Typ 5.
context_page_description: The Odhner Arithmometer was a very successful pinwheel calculator invented in Russia in 1873 by W. T. Odhner, a Swedish immigrant. Its industrial production officially started in 1890 in Odhner's Saint Petersburg workshop. Even though the machine was very popular, the production only lasted thirty years until the factory was nationalised and closed down during the Russian revolution of 1917.
  From 1892 to the middle of the 20th century, independent companies were set up all over the world to manufacture Odhner's clones and, by the 1960s, with millions sold, it became one of the most successful type of mechanical calculator ever designed.
context_section_description: Towards the end of 1917, the Odhner family went back to Sweden and restarted the manufacturing of their calculator under the Original-Odhner name. In 1924, the Russian government moved the old production facility to Moscow and commercialized their calculator under the Felix Arithmometer name which went on well into the 1970s.
  In 1950, with millions of clones manufactured, the Odhner arithmometer was one of the most popular type of mechanical calculator ever made. The number of machines produced increased constantly until the appearance of the electronic calculators in the early 1970s. For instance, the production of one of them, the Felix arithmometer of Russia, peaked in 1969 with 300,000 machines made.
  Odhner's arithmometer was copied, manufactured and sold by many other companies all over the world. In Germany there was Thales, Triumphator, Walther and Brunsviga. In England there was Britannic and Muldivo. In Sweden Multo and Original-Odhner. In Russia Felix and in Japan Tiger and Busicom which, incidentally, was made famous because Intel created the first microprocessor, the Intel 4004, while designing one of their electronic calculators in 1970.
caption: Original-Odhner Arithmos, Type 5, Made in Sweden
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