U.S. Utility Patent 682,197 (US682197A)

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Provided by the ASK Keyboard Patents database

A patent diagram depicting Herman Hollerith's apparatus for perforating record-cards from a top-down perspective

Applied 17th May 1901

Published 10th September 1901

Expired 10th September 1918

More informaion

Name	Apparatus for perforating record-cards
Inventors	Herman Hollerith
Description	An invention of a hand-operated keypunch (punched-card recording device) that can mechnically advance column automatically upon punching. This was implemented as the Hollerith and later IBM 001 Mechanical Card Punch.

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