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 148,478 pages of information and 233,901 images on early companies, their products and the people who designed and built them.

Sprague Electric Co

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Robert C. Sprague, son of Frank Julian Sprague, founded the Sprague Electric Company which became a leading manufacturer of capacitors and other electronic components.

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