Origin of modern calculating machines

Language

en

Duration

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Publisher of text edition

Project Gutenberg

Original publisher

United States: The Western Society of Engineers, 1921.

Credits

deaurider and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)

Release date

2022-11-19

Rights

Public domain in the USA.