The Burroughs Adding Machine Company (1922)
Adding Machines -- Ten Keys & Fewer | National Museum of American History
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William S. Burroughs – Complete Biography, History, and Inventions - History-Computer
William Burroughs | Lemelson
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Answers in Black and White (And Sometimes Right) - CHM Revolution
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Adding-Listing Machines
This mechanical calculator was an invaluable machine for railway... News Photo - Getty Images
American Arithmometer Company - Wikipedia
PPT - History of calculators PowerPoint Presentation - ID:2819432
Burroughs Adding Machine | The Franklin Institute
William Burroughs – Computer Timeline
William Burroughs – Computer Timeline
William S. Burroughs – Complete Biography, History, and Inventions - History-Computer
PPT - William Seward Burroughs PowerPoint Presentation - ID:298156
William S. Burroughs (1857-1898) - Find a Grave Memorial
Adding-Listing Machines
Burroughs Adding Machine Co. - History
:max_bytes(150000):strip_icc()/blaise-pascal-calculating-machine-515214884-5c81fc9b46e0fb0001431954.jpg "The History of Calculators and William Seward Burroughs")
The History of Calculators and William Seward Burroughs
