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 144,294 pages of information and 230,176 images on early companies, their products and the people who designed and built them.

Doyle and Tratt Products

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of Horsham, West Sussex.

Manufacturers of electronic dimmer switches and Varilight brand electrical accessories.

1972 Company founded by Dr Anthony James Doyle and Peter John Tratt.

1974 Incorporated as a Limited Company.

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