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 146,754 pages of information and 232,400 images on early companies, their products and the people who designed and built them.

Minerva Detectors

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of Twickenham

  • 1968 Supplied smoke detectors for IMI when they opened the first liquid-metal-cooled vacuum titanium-melting furnace at Birmingham [1]


See Also

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Sources of Information

  1. The Engineer of 10th May 1968 p742