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 136,353 pages of information and 219,137 images on early companies, their products and the people who designed and built them.

Colt Ventilation and Heating

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October 1962.

c.1962 Colt Ventilation Ltd changed its name to Colt Ventilation and Heating Ltd

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