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Tabulating Machine

Dec. 25, 2024

Tabulating machine - Wikipedia Herman Hollerith's Tabulating Machine | At the Smithsonian| Smithsonian Magazine Hollerith Tabulating Machine | Smithsonian Institution Hollerith Electric Tabulating System (replica) - CHM Revolution Electric Tabulation Machine | The Franklin Institute Hollerith Tabulating Machine | Smithsonian's History Explorer | Tabulating Machine


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