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 148,470 pages of information and 233,895 images on early companies, their products and the people who designed and built them.

Dupley Electronics

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March 1949.
June 1949.
September 1949.
October 1949.

of Ealing.

Battery charger

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