Search examples: Microsoft | 2015 | 2014/10 | 4.12 | 04/20 | 05/26/1980 | Galileo Galilei
  1. Home
  2. Science
  3. Detail of event

Herman Hollerith (technology)

science · 08 June 1887 · 138 years ago

Herman Hollerith Herman Hollerith receives a U.S. patent for his punched card calculator.

More science on 08 Jun

© 2016 OnThisDay.net All rights reserved.
Loaded in 0.003s.