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Patent Drawing for H. Holerith's Apparatus for Compiling Statistics

  • 1/8/1889

View the full document here: https://docsteach.org/document/patent-drawing-for-h-holeriths-apparatus-for-compiling-statistics/

Description

One of the earliest successful “mechanical computers,” Herman Hollerith’s invention used punched cards to sort, tabulate and compile statistics, including the 1890 Census. His firm would go on to become part of International Business Machines (IBM).

Citation

This primary source comes from the Records of the Patent and Trademark Office, 1836 - 1978.

National Archives Identifier: 7451900

Full Citation: Patent Drawing for H. Holerith’s Apparatus for Compiling Statistics; 1/8/1889; Records of the Patent and Trademark Office, 1836 – 1978, Record Group 241. [Online Version, https://docsteach.org/document/patent-drawing-for-h-holeriths-apparatus-for-compiling-statistics/, April 6, 2026]

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