History of Calculators » Millionaire Calculator

The Millionaire Calculator

millionairThe Millionaire Calculator was designed by a Frenchman, Leon Bollee, in 1892 and a German Patent was granted in 1895. 4 Years after a machine is introduced by a Swiss Otto Steiger and built by Hans W. Egli of Zurich, from 1899 to 1935, the "Millionaire" was the first machine capable of direct multiplication. Previous to this, multiplication had been accomplished by successive additions. The Millionaire did away with this repetitive operation and could multiply two numbers with a single turn of the crank.

Only the earliest production seems to have been cased in mahogany. By today’s standards, the machine is quite cumbersome. Made of brass and steel, it weighs about 100 pounds. The machine, called the Millionaire, was developed primarily for big business. But very quickly they were used by Scientists.

Updated On: 13.09.15

  1. On 21-Oct-2015, Psedemous wrote: 
    very interesting
    Your reply to Psedemous

  2. On 21-Oct-2015, Anonymous wrote: 
    hkkkkkkkkkk
    Your reply to Anonymous

  3. On 05-Mar-2015, Wade wrote: 
    The minimum offer I would sell it for would be $2,500. Plus the cost of shipping.
    The calculator has been in the family a long time, mainly in the basement.
    Your reply to Wade

  4. On 24-Mar-2013, Wade wrote: 
    it took seven years to get a reply to my question. o.k.
    who would be interested in a millionaire mechanical calculator #654 ?
    Your reply to Wade
    • On 04-Mar-2015, Max replied: 
      I sure would.
      Your reply to Max
      • On 04-Mar-2015, Tim replied: 
        What did you say? (Reply)

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