Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,028 pages of information and 227,610 images on early companies, their products and the people who designed and built them.

Felt and Tarrant Manufacturing Co

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of Chicago

Maker of the Comptometer

c.1890 The original Felt and Tarrant Comptometer was one of the first generation of mass-produced office calculators. It was extremely successful being able to multiply and subtract quickly and efficiently.[1]


See Also

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Sources of Information

  1. Science Museum [1]