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IBM SPEAKERS BUREAU SLIDE SHOW

Slide 55
Patent in 1888

Courtesy: IBM Corporation

He received his first patent in 1888 and had manufactured 50 machines by the next year. They proved impossible for anyone but Burroughs to operate. (There was one exception, a field agent who operated his calculator so well he refused to sell it, preferring to haul it from saloon to saloon in a wheelbarrow betting drinks on his accuracy.)

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