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 148,143 pages of information and 233,681 images on early companies, their products and the people who designed and built them.

C. M. I. Products

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October 1949.
June 1951. He-Man Screwdriver.

of Finchley Road, Hampstead, London

Previously Conner Magneto and Ignition Co Ltd

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Sources of Information