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 148,110 pages of information and 233,634 images on early companies, their products and the people who designed and built them.

Fearns Calculators

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of Gateshead.

1974 Developed the "Metripak" calculator that was considered a breakthrough in imperial, metric and SI units with accuracies of up to six figures.[1]

See Also


Sources of Information

  1. The Engineer 1974/01/17