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IBM SPEAKERS BUREAU SLIDE SHOW

Slide 61
Odhner Machine

Courtesy: IBM Corporation

A year later in Russia, a Swede, Wilgodt Odhner, patented a machine that was almost identical to Baldwin's. Another one of those historical accidents: Odhner was working for Ludvig Nobel in St. Petersburg, and while there, with Nobel's support, began work on his calculator. His plan -- to design and manufacture an industrial calculator that would be small and simple, easy to operate, and so inexpensive that practically anyone who needed a mechanical aid would be able to acquire one.

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2006 San Diego Computer Museum
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