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 147,385 pages of information and 233,518 images on early companies, their products and the people who designed and built them.

John Crawford

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Dr John Crawford

Worked for ICI's Explosives Division,

1932/3 Developed the first commercial synthesis of poly-methyl methacrylate, Perspex, building on work that he and Rowland Hill of ICI's Dyestuffs group had done.

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