Herman Hollerith Applies For A Patent For His Calculator
June 08 1887

Description
Herman Hollerith applies for US patent #395,791 for the 'Art of Applying Statistics' – his punched card calculator.
Location
References
Calculatorexternal
Punched cardexternal
Patentexternal
Herman Hollerithexternal
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Created By: johnny
Created On: 2015-04-30T22:38:17Z

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